Picking the perfect jigsaw blade doesn't have to be a guessing game. Honestly, it comes down to just three things: making sure the shank fits your saw, matching the blade material to what you're cutting, and picking a tooth count (TPI) that gives you the right balance of speed and finish. Nail those three, and you'll get a professional-grade cut every single time. This guide is built from years of on-the-job experience, cutting everything from framing lumber to stainless steel. We're skipping the fluff and getting straight to what works in the real world.
Your Quick Guide to Choosing Jig Saw Blades

When you're on the clock, you don't have time to sift through a dense manual. You just need the right blade so you can get back to work. Think of this section as your cheat sheet—a straight-to-the-point guide for grabbing the correct blade and moving on. We’re cutting out the theory and focusing on the practical choices that directly affect your cut quality and how fast you can get the job done. The logic behind choosing the right blade isn't unique to jigsaws; it applies to any cutting tool. You're always weighing the material you're cutting against the performance you need to get the best result. To make things even simpler, we've put together a quick reference table. Just find the material you're working with to see our recommended blade type and TPI for the finish you're after.
Jig Saw Blade Quick Selection Chart
Match your project material to the right blade material and TPI for the cut quality you need.
| Material to Cut | Recommended Blade Material | Recommended TPI Range | Expected Cut Quality |
|---|---|---|---|
| Softwood, Plywood | High-Carbon Steel (HCS) | 6-10 TPI | Fast, Rough Cut |
| Hardwood, Laminates | Bi-Metal (BiM) | 10-20 TPI | Slow, Fine Finish |
| Mild Steel, Aluminum | Bi-Metal (BiM) | 14-24 TPI | Medium Speed, Clean Cut |
| Stainless Steel | Bi-Metal (BiM) | 24-32 TPI | Slow Speed, Smooth Cut |
| Plastics, PVC | High-Carbon Steel (HCS) | 10-14 TPI | Medium Speed, Clean Cut |
This chart is a great starting point, but let's quickly walk through the three critical choices you'll make when you're standing in front of the blade aisle.
The Three Critical Choices
Every time you reach for a new blade, you're making three key decisions that will define the success of your cut. Getting any one of them wrong can lead to a ruined workpiece or a broken blade.
-
Shank Type (T-Shank vs. U-Shank): First things first, the blade has to fit your saw. T-Shank blades are the modern industry standard for a reason—that T-shape locks securely into the tool-free clamps found on nearly all professional saws from brands like DeWalt, Bosch, and Makita. This positive lock prevents wobble and delivers maximum power. U-Shank blades, with their little half-moon cutout, are mostly for older or budget saws that use a set screw. Bottom line: If you've bought a saw in the last decade, you almost certainly need a T-Shank.
-
Blade Material: Using the wrong blade material is like trying to cut a steak with a butter knife—it’s frustrating, ineffective, and makes a mess.
- High-Carbon Steel (HCS): These are your bread-and-butter blades for soft materials like pine, plywood, and plastics. They’re flexible and inexpensive, but they’ll get dull in a hurry if you try to force them through hardwood or metal because they can't handle the heat.
- Bi-Metal (BiM): This is the undisputed workhorse of jigsaw blades. By welding hard High-Speed Steel (HSS) teeth onto a flexible HCS body, you get the best of both worlds: extreme durability and flexibility. They handle hardwoods, nail-embedded wood, and metals with ease and last significantly longer than HCS blades, making them the go-to choice for all-around use.
-
Teeth Per Inch (TPI): Finally, let's talk about the finish. The TPI of your blade is a simple trade-off between speed and smoothness.
- Low TPI (6-10): Fewer, bigger teeth act like little hatchets, chomping through material aggressively. This is great for rough, fast cuts in construction lumber or for demolition work where the finish doesn't matter.
- High TPI (14-32): More, smaller teeth take tiny bites, resulting in a much cleaner, smoother edge. This is essential for fine woodworking, cutting laminates without chipping, or getting a burr-free edge on metal.
If you're just starting to build out your tool collection, mastering these basics is a huge step. For more tips on getting started, check out our guide on the best woodworking tools for beginners.
Pro Tip: When in doubt, a Bi-Metal (BiM) blade is your best friend. It has the durability to tackle almost any common material, from 2x4s to angle iron, and offers a great blend of performance and longevity. If you could only have one type of blade in your kit, this would be it.
Understanding Jig Saw Blade Anatomy
Ever wondered why one jigsaw blade glides through plywood like butter while another just chews it up and leaves a mess? It’s not magic. It all comes down to the blade's design, from the part that locks into your saw to the shape of the teeth doing the cutting. A jigsaw blade might seem like a simple strip of metal, but every single part of it is engineered for a specific job. Once you understand the anatomy, you'll be able to walk up to any display, grab the perfect blade for your project, and get to work without any guesswork. This knowledge is what separates a craftsman from someone who just owns tools.
The Shank: The Foundation of a Secure Fit
First things first: you have to make sure the blade actually fits your saw. The shank is the top part of the blade that locks into the jigsaw’s clamp. Getting this wrong isn't just an inconvenience—a poor fit can be wobbly, inaccurate, and downright dangerous, as a loose blade can easily snap or fly out. On any job site or in any hardware store, you'll really only see two types of jigsaw blade shanks.
-
T-Shank Blades: This is the modern standard, hands down. The distinct "T" shape at the top allows the blade to snap securely into the tool-free clamps found on over 95% of jigsaws sold today by brands like DeWalt, Makita, and Bosch. This positive lock prevents wobble and gives you much better control and accuracy because power transfer is direct and efficient.
-
U-Shank Blades: You can spot these by the U-shaped cutout at the top. These are a holdover from older saw designs that used a small set screw to clamp the blade in place. While they get the job done, the connection isn't nearly as solid, and swapping blades is a much slower chore involving an Allen key.
Bottom Line: Unless you’re running a vintage saw or a very basic entry-level model, you should be buying T-Shank jig saw blades. They’re the professional standard for a reason: speed, safety, and precision.
This industry-wide shift to the superior T-shank system is a big reason the tool market continues to evolve. The global jig saw blades market was valued at USD 1.2 billion in 2026 and is projected to hit USD 1.8 billion by 2033. That growth is all about the demand for better, more efficient tools—and you can find some fantastic deals on open-box items from these top-tier brands at Value Tools Co. You can discover more about these market trends on Verified Market Reports.
Blade Materials: What It's Made Of Matters
Once you know the shank fits, the next thing to consider is what the blade itself is made of. Matching the blade material to your workpiece is the key to getting a clean cut and not burning through blades. Using the wrong one is a recipe for a bad finish, a ruined blade, and a lot of frustration. Here’s the breakdown of the most common blade materials you'll find on the shelf, and the real-world scenarios where each one excels.
- High-Carbon Steel (HCS): These are your workhorses for softer materials like pine, MDF, and most plastics. HCS blades are flexible and inexpensive, but they don’t handle heat well. Try to cut hardwood or metal with them, and they’ll go dull in a hurry, often leaving burn marks on your material.
- High-Speed Steel (HSS): Just like the name says, these blades are built to handle the heat and friction that comes from cutting hard materials. HSS is your go-to for metals like aluminum, copper, and mild steel. They're more brittle than HCS but hold a sharp edge much longer when things get hot.
- Bi-Metal (BiM): The best of both worlds and the blade every pro keeps in their bag. Bi-Metal blades cleverly combine a flexible HCS body with super-hard HSS teeth welded to the cutting edge. This hybrid design gives you a blade that’s tough enough to slice through hardwood, metal, and even nail-embedded wood without snapping.
Teeth Geometry: The Secret to Speed and Finesse
Finally, we get to the business end of the blade—the teeth. How they're shaped and spaced is what ultimately determines if your cut is fast and rough or slow and clean. Two things matter most: TPI and tooth design. Teeth Per Inch (TPI) is a simple concept with a huge impact on your results. Think of it like sandpaper grit: a lower number means a more aggressive, faster result, while a higher number delivers a smoother finish.
- Low TPI (e.g., 6-10): Fewer, bigger teeth act like little hatchets, chomping out large chunks of material. This makes for a very fast but rough cut, perfect for framing lumber or quick demolition work where precision is not the goal.
- High TPI (e.g., 20-32): Lots of small teeth take tiny, precise bites. The cut is much slower, but the resulting edge is clean and smooth. This is what you want for fine woodworking, laminates, plastics, and metal where the cut edge will be visible.
How the teeth are formed also makes a difference. Milled teeth are less refined and are all about brute force for fast, rough cuts. Ground teeth, on the other hand, are sharpened with much greater precision, giving you that clean, splinter-free finish you need for high-quality work. It all comes back to knowing what you want to achieve and choosing the right tool for the job.
Matching Blades to Materials for Perfect Cuts
Alright, let's get down to brass tacks. You know what the different parts of a blade do, but theory only gets you so far. The real skill comes from matching the right blade to the right material on your workbench. This single decision is what separates a clean, professional cut from a splintered, frustrating mess. I’ve seen it a hundred times: someone grabs a generic wood blade for a sheet of nice plywood and then wonders why the edges look like they’ve been chewed by a beaver. We’re going to walk through the common materials you’ll face—from basic pine and tricky laminates all the way to metal—so you can grab the right blade with confidence every time. If you want to go deeper on the characteristics of different woods and why they behave differently, this guide on the best types of wood for woodworking is a fantastic resource.
To make this even simpler, think of it like this: your choice always boils down to what you're cutting and how pretty you need the cut to be. This chart is a great starting point.

As you can see, it's almost always a trade-off. Faster cuts usually mean a rougher finish, and a glass-smooth finish often requires more patience. To help you navigate these choices, here's a detailed breakdown of different blade types and where they truly shine on the job site.
Comparing Jig Saw Blade Types and Applications
The table below gives you a cheat sheet for the most common blade materials. It covers what they're made of, their ideal use cases, and the real-world pros and cons you'll experience on the job.
| Blade Type | Composition | Best For | Pros | Cons |
|---|---|---|---|---|
| High-Carbon Steel (HCS) | A relatively soft and flexible steel. | Softwoods, plywood, OSB, and plastics. | Inexpensive and flexible, which reduces breakage. | Dulls quickly in hardwoods or metal; not heat-resistant. |
| High-Speed Steel (HSS) | Hardened, heat-resistant steel. | Most metals, including aluminum, mild steel, and copper. | Very hard and durable; stays sharp when cutting hard materials. | More brittle than HCS and can snap under heavy flexing. |
| Bi-Metal (BiM) | A combination of HCS and HSS. The body is flexible HCS, while the teeth are hard HSS. | The ultimate all-rounder. Hardwoods, metals, and demanding general use. | The best of both worlds: flexible, heat-resistant, and long-lasting. | More expensive than HCS or HSS blades. |
| Tungsten Carbide (TC) | HCS or HSS body with tungsten carbide grit or teeth brazed on. | Extremely hard or abrasive materials: ceramic tile, fiberglass, brick, cement board. | Unmatched durability for cutting materials that would destroy other blades. | Very expensive and specific in its application; cuts slowly. |
Ultimately, having a good mix of HCS and BiM blades will cover about 90% of your cutting needs. Keep the specialty blades like HSS and Tungsten Carbide on hand for when those specific jobs come up.
Blades for Softwoods, Plywood, and OSB
For everyday cuts in materials like pine, 2x4s, basic plywood, or OSB, a standard High-Carbon Steel (HCS) blade is your workhorse. These materials just aren't dense enough to warrant a pricier blade, making HCS a great value for general construction and rough-in work. You'll want a blade with a low TPI—something in the 6 to 10 TPI range is perfect. The big, aggressive teeth will chew through the material and clear out sawdust for a fast, no-nonsense cut. Just remember, this setup is about speed, not a flawless finish, so expect some roughness and splintering on the edges.
Blades for Hardwoods and Fine Woodworking
When you move up to dense hardwoods like oak, maple, or walnut, the game changes. An HCS blade will overheat and dull almost immediately, often leaving ugly burn marks on your expensive wood. This is non-negotiable territory for a Bi-Metal (BiM) blade, which can handle the heat and abrasion without failing. For hardwoods, you also need more teeth to get a clean slice. A 10 to 14 TPI BiM blade is the sweet spot, giving you a smooth cut without taking all day. If the finish is absolutely critical for something like visible furniture joints, don't hesitate to grab a 20 TPI blade for an edge that looks almost sanded right off the saw.
Pro Tip: When cutting expensive veneered plywood or fine hardwoods, always reach for a "reverse-tooth" or "down-cut" blade. These are a game-changer. They cut on the downstroke, pressing the wood fibers down and completely eliminating that ugly tear-out on the visible surface of your workpiece.
Blades for Laminates and Countertops
Laminate flooring and countertops are notorious for chipping. That brittle top layer can make a clean cut feel impossible, potentially ruining a costly panel with a single mistake. The solution is a purpose-built blade designed specifically for this task. A BiM blade with 12 to 20 TPI is a must, but even more important is using a reverse-tooth blade. This ensures the teeth are cutting down into the finished surface, cleanly shearing the laminate instead of lifting it up and causing chips. And whatever you do, set your saw's orbital action to zero; the aggressive orbital motion is the number one cause of chipping on laminates.
Blades for Cutting Metal
Cutting metal with a jigsaw is absolutely possible, but you need a totally different kind of blade. Don't even think about using a wood blade here—it will strip the teeth in seconds. You have to use a blade made of High-Speed Steel (HSS) or, for better life and performance, Bi-Metal (BiM). The right TPI depends on the metal's thickness.
- For thin sheet metal (under 1/8"): Go with a high TPI, around 21 to 24 TPI. The fine teeth prevent the blade from catching and tearing the thin material.
- For thicker steel or pipe (1/8" to 1/4"): A lower TPI, around 14 to 18 TPI, will clear material more effectively and cut faster without getting clogged.
Here’s a crucial tip for metal: slow your saw speed way down and use a cutting lubricant. This simple step keeps the blade from overheating, which is the key to extending its life and getting a surprisingly clean, burr-free cut.
Advanced Cutting Techniques and Blade Care

So, you’ve got a handle on matching blades to materials. Now it's time for the fun part—learning the techniques that truly separate the pros from the amateurs. This is where you move beyond basic cuts and start solving real-world problems, turning your jigsaw into a genuine problem-solver on the job site. It's all about learning to balance raw cutting speed with a clean finish, making those tricky cuts with confidence, and keeping your gear in top shape so it doesn't fail you when you need it most. You’ll be making the tool work for you, not the other way around.
Balancing Speed and Precision with Orbital Settings
That little dial on your jigsaw for orbital action is probably one of the most powerful features you have, but it's often misunderstood. Think of it as a gear shifter for your blade. When the setting is at zero, the blade just moves straight up and down. This gives you maximum control for clean, precise work, especially in metal or for tight curves. But when you crank it up, the blade starts moving in an elliptical pattern, aggressively scooping out material. This clears sawdust like a champ and lets you fly through wood. The catch? You sacrifice that clean finish for pure speed.
- Setting 0: This is your go-to for metal, laminates, and any hardwood where a splinter-free edge is the top priority.
- Settings 1-2: Think of this as a happy medium. It's great for general work in plywood or softwoods where you want to move quickly but still need a decent finish.
- Settings 3-4 (Max): Unleash the beast. This is for raw, fast cutting. Perfect for demolition work or just breaking down framing lumber when the cut quality doesn't matter one bit.
Pro Tip: Never start a cut or tackle a tight corner with the orbital action on. Begin with the setting at 0 to get your cut established, then dial it up on the straight sections to gain speed.
Mastering Advanced Cuts
A jigsaw really shines where other saws just can't go. With the right blade in hand and a bit of practice, you can pull off some impressive and highly practical cuts that are impossible with a circular or table saw.
-
Scroll Cuts: For detailed patterns with lots of tight curves, grab a narrow, fine-toothed blade—something like a 12-20 TPI BiM blade is perfect. Let the saw move at its own pace and focus on guiding it. Never force it. And always, always keep that orbital setting at 0 to stop the blade from wandering off your line.
-
Plunge Cuts: Need to make a cutout in the middle of a sheet of plywood without drilling a starter hole? This is your move. Rest the front "lip" of the saw's base on the material, keeping the blade from touching it. With a firm grip, turn the saw on and slowly rock it backward, letting the blade gently bite into the wood. Safety is critical here—use a sharp, sturdy blade to prevent the saw from kicking back at you.
-
Cutting Circles: You don’t need a fancy circle-cutting jig. Just drill a pilot hole in the center of your circle and put a screw or nail in it to act as a pivot. Attach a thin strip of scrap wood to your saw’s base to act as a trammel, measure out your radius, and simply rotate the entire saw around the pivot point. You’ll get a surprisingly perfect circle every time.
The global demand for high-performance tools is huge—Europe alone makes up over 45% of the jigsaw blade market. For professionals, this means that investing in premium bi-metal blades that can reduce blade changes by up to 40% on a big job is just good business. You can find out more about the global demand for these professional tools on Valuates Reports.
Extending the Life of Your Jig Saw Blades
Quality blades cost money, so getting more life out of them is a no-brainer. A couple of good habits can easily double or triple the lifespan of a blade, saving you cash and hassle. First and foremost, avoid overheating. Heat is the #1 enemy of a sharp edge. When you're cutting tough materials like dense hardwood or metal, slow the saw speed down and consider using a cutting lubricant. Second, don't force the saw. Pushing too hard is a classic rookie mistake. It causes the blade to wander and bend, but it also creates a ton of extra friction and heat, which dulls the teeth in a hurry. Just guide the saw and let the blade do its job. While we're on the subject, if you're curious about bringing other old blades back to life, check out our guide on saw blade sharpening.
How to Buy Jigsaw Blades Wisely
When it comes to buying jigsaw blades, a little bit of know-how goes a long way. It's not about finding the absolute cheapest blade you can; it's about getting the most performance for your money. Think of it as an investment. The right blade saves you time, prevents you from ruining expensive materials, and ultimately, helps you deliver better work. The global market for jigsaw blades is projected to hit nearly USD 748.4 million by 2032. That's a lot of blades! And with e-commerce for tools jumping 40% since 2020, you've got more options at your fingertips than ever before. This is your chance to compare TPI, materials, and shank types to make a truly informed choice. Smart decisions here—like buying in bulk to drop your cost-per-blade—directly improve your bottom line. You can see more market trends from Dataintelo to get the full picture.
The Real Cost of Cheap Blades
We've all been there. You see a pack of no-name blades for a fraction of the price of the big brands and think, "How different can they be?" The answer is: very. Paying a bit more for blades from trusted names like DeWalt, Makita, or Bosch isn't just paying for the logo. You're paying for better steel, precision-ground teeth, and proper heat treating. This is what that gets you: cleaner cuts, a much longer blade life, and far less chance of a blade bending or snapping mid-cut. A cheap blade that dulls quickly or deflects can destroy a pricey sheet of plywood or a perfectly measured piece of laminate in a heartbeat. A quality blade gives you confidence and consistency, which saves you headaches, materials, and ultimately, money.
Variety Packs vs. Single Blades
So, what should you add to your cart? A big multi-pack with a bit of everything, or specific blades for the job? Honestly, the smart move is to have both, depending on your needs.
- Variety Packs: If you’re building out your tool kit or you're a generalist who tackles a wide range of tasks, a good variety pack is your best friend. It’s the most economical way to get a solid collection of blades for wood, metal, and plastics. This builds your foundation so you can tackle most common jobs that come your way without having to run to the store.
- Single Blades: Once you get into a groove and find yourself doing the same type of work repeatedly, it's time to specialize. If you’re a cabinet installer, stocking up on down-cut laminate blades in 5- or 10-packs is a smart move. If you're a metal fabricator, buying high-TPI bi-metal blades in bulk just makes financial sense.
The Smart Buyer's Secret: Pro-Grade Gear for Less Here’s a little trick many pros use to keep costs down without compromising on quality: buy open-box or lightly used accessories. A trusted supplier like Value Tools Co. is a great place to find premium, brand-name jigsaw blades at a serious discount. Often, these are just customer returns or items with a damaged box, but the blades inside are brand new. This strategy gets you top-tier performance and durability while respecting your budget. It's how you make every dollar work as hard as you do, especially when you pair those premium blades with a high-performance saw like an open-box DeWalt XR Cordless Jigsaw.
Frequently Asked Questions About Jig Saw Blades
You've got questions, and we've got straight answers. After years on job sites and countless hours in the shop, we've heard them all. Here are the most common things people ask about jigsaw blades, with practical, no-nonsense advice you can put to use on your very next cut.
Are T-Shank and U-Shank Jig Saw Blades Interchangeable?
Absolutely not. Think of it like trying to use a European plug in a US outlet—it simply won't connect properly, and you risk causing damage. The two shank styles are designed for completely different locking mechanisms. Most modern jigsaws from top brands like DeWalt, Makita, and Bosch are built for T-Shank blades. Their quick-change, tool-free systems are engineered to grab that "T" shape for a rock-solid lock. That positive connection is what stops wobble and ensures all the motor's power goes right into the cut. U-Shank blades are the older standard, made for saws that use a set screw to clamp the blade down. Trying to jam a U-Shank blade into a modern T-Shank saw will give you a loose, rattling fit, terrible cut quality, and a real safety hazard.
The Rule of Thumb: Always double-check your saw's manual. But if you bought your jigsaw sometime in the last 15 years, it's a safe bet that it takes a T-Shank blade.
What Does TPI Mean on a Jig Saw Blade?
TPI is short for Teeth Per Inch. This number is the single most important detail on a blade because it dictates both the speed and the cleanliness of your cut. It's a simple trade-off: more teeth give you a cleaner cut, while fewer teeth cut much faster.
- Low TPI (6-10): These blades have big, aggressive teeth with lots of space between them. They're like little hatchets, chopping out material for a super-fast but rough result. Perfect for framing lumber, demolition, or any job where getting it done quickly is more important than a pretty finish.
- High TPI (20-32): With these blades, the teeth are tiny and packed together. They take small, delicate bites, which slows things down but leaves behind an incredibly clean, smooth edge. You'll want a high TPI for fine woodworking, getting chip-free cuts in laminates, or leaving a burr-free edge on metal.
Honestly, mastering this one concept—matching the TPI to the material—is the secret to getting professional-looking results with your jigsaw.
Can You Cut Metal with a Wood Jig Saw Blade?
That's a hard no. Trying to cut metal with a standard wood blade isn't just a bad idea; it’s dangerous. Your typical wood blade is made from High-Carbon Steel (HCS), which is nowhere near hard enough for the job. The moment it hits the metal, the teeth will be stripped clean off the blade. Not only will you instantly ruin the blade, but you also risk gouging your workpiece or having the blade shatter. When cutting any kind of metal, you must use a blade made for it. That means grabbing a blade made of either High-Speed Steel (HSS) or, for even better life and heat resistance, a Bi-Metal (BiM) blade. These have much harder teeth and a higher tooth count (usually 18-32 TPI) designed to slice through metal safely and effectively.
How Do You Stop a Jig Saw Blade from Bending?
Ah, blade bending. We've all been there—you're trying to make a perfectly straight cut, and you end up with a beveled edge instead. This problem, called "deflection," almost always comes down to one of these three things.
- You're Using the Wrong Blade: A thin, standard blade will always want to wander when you push it through thick, dense material. The solution? Switch to a purpose-built "straight cut" or "thick stock" blade. These are noticeably thicker and more rigid, which helps them resist the force that causes them to flex.
- You're Forcing the Saw: This is the number one mistake people make. It’s tempting to muscle the saw through the wood, but you have to let the blade do the work. Your job is just to guide it. Apply gentle forward pressure and let the teeth and orbital action handle the cutting. If you push too hard, the blade has nowhere to go but sideways.
- Your Orbital Setting is Too High: Orbital action is great for hogging out material quickly, but it works by introducing an elliptical motion to the blade. That very motion encourages the blade to wander. When you need a truly straight, precise cut, turn your saw's orbital setting all the way down to 0.
Nail these three things, and you'll find your blade bending problems will disappear, leaving you with straight, true cuts every time.
At Value Tools Co, we believe having the right tool shouldn't break the bank. Whether you need pro-grade performance for the job site or a reliable tool for your next DIY project, we offer unbeatable deals on open-box and lightly used equipment from brands you trust. Get the quality you demand at a price you'll love. Explore our collection and start saving today.
{ "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Are T-Shank and U-Shank Jig Saw Blades Interchangeable?", "acceptedAnswer": { "@type": "Answer", "text": "No, they are not. Most modern jigsaws from brands like DeWalt, Makita, and Bosch are designed exclusively for T-Shank blades because their tool-free mechanism provides a much stronger grip. U-Shank blades, which require a set screw to tighten, fit older or some entry-level models. Using the wrong shank can lead to a loose fit, poor cuts, and safety hazards. Always check your saw's manual to confirm the required shank type." } }, { "@type": "Question", "name": "What Does TPI Mean on a Jig Saw Blade?", "acceptedAnswer": { "@type": "Answer", "text": "TPI stands for 'Teeth Per Inch.' It's the single most important factor for cut quality. A low TPI (like 6-10) means large, widely-spaced teeth for fast, aggressive cuts in materials like construction lumber, but the finish will be rough. A high TPI (like 20-32) has small, tightly-packed teeth that cut slower but leave a clean, smooth finish, making them ideal for hardwoods, laminates, and metal. Matching TPI to your material is the key to professional results." } }, { "@type": "Question", "name": "Can You Cut Metal with a Wood Jig Saw Blade?", "acceptedAnswer": { "@type": "Answer", "text": "Absolutely not. A wood blade, usually made of High-Carbon Steel (HCS), will be destroyed almost instantly if you try to cut metal. The teeth will be stripped off, ruining the blade and potentially damaging your workpiece. For metal, you must use a blade made of High-Speed Steel (HSS) or a more durable Bi-Metal (BiM) blade. These have harder teeth and a higher TPI (18-32) designed to handle the stress of cutting metal cleanly and safely." } }, { "@type": "Question", "name": "How Do You Stop a Jig Saw Blade from Bending?", "acceptedAnswer": { "@type": "Answer", "text": "Blade bending, or 'deflection,' usually happens for three reasons. First, you might be using the wrong blade; a thin blade will flex in thick material. Use a thicker, more rigid 'straight cut' blade. Second, you are pushing the saw too hard. Let the blade do the work and guide the saw gently. Forcing it is the #1 cause of bending. Finally, turn your saw's orbital setting down to 0. Orbital action is great for speed but it encourages the blade to wander, especially in thick or dense materials." } } ] }
