Jigsaw Blade Types Explained: Choose the Right Blade for Every Material
What's inside
- Quick jigsaw blade types chart
- Blade material: what the steel tells you
- Tooth count and pattern: choose speed or finish
- Shank styles: check compatibility before buying
- Pick by situation, not by the largest assortment
- How to match blade length and cutting settings
- Durability, maintenance and replacement signs
- Frequently asked questions
- Related Guides
- Quick jigsaw blade types chart
- Blade material: what the steel tells you
- Tooth count and pattern: choose speed or finish
- Shank styles: check compatibility before buying
- Pick by situation, not by the largest assortment
- How to match blade length and cutting settings
- Durability, maintenance and replacement signs
- Frequently asked questions
- Related Guides
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Jigsaw Blade Types Explained: Choose the Right Blade for Every Material
The right jigsaw blade depends on four decisions: the material you are cutting, the finish you need, the blade shank your saw accepts, and the tooth count or pattern suited to the job.
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Quick jigsaw blade types chart
| Material or job | Best blade material | Typical tooth range | Recommended pattern | Useful blade length |
|---|---|---|---|---|
| Softwood, fast rough cuts | High-carbon steel (HCS) | 6–10 TPI | Large, widely spaced teeth | 75–100 mm |
| Hardwood and clean crosscuts | HCS or bi-metal | 10–15 TPI | Fine, ground teeth | 75–100 mm |
| Plywood and laminated boards | HCS or bi-metal | 10–20 TPI | Reverse-tooth or down-cut | 75–100 mm |
| Thin sheet metal | High-speed steel (HSS) or bi-metal | 18–32 TPI | Fine, closely spaced teeth | 75–100 mm |
| Aluminium and non-ferrous metal | Bi-metal | 14–24 TPI | Wavy-set or milled teeth | 75–100 mm |
| Plastic and acrylic | HCS or HSS | 10–20 TPI | Fine, non-aggressive teeth | 75–100 mm |
| Ceramic tile or abrasive board | Carbide-grit or diamond-grit | Grit specification rather than TPI | Continuous abrasive edge | 75–100 mm |
Blade material: what the steel tells you
HCS blades for general wood and plastic
High-carbon steel blades are economical and flexible. They are a practical choice for softwood, plywood, chipboard, fibreboard and many plastics. HCS teeth dull faster than hardened or alloy blades, particularly when cutting hardwood, abrasive laminates or dirty reclaimed timber. Their low price makes them suitable for routine work where a blade may be treated as a consumable.
HSS blades for thin metal
High-speed steel blades resist heat better than HCS and have fine teeth appropriate for sheet steel, copper and some aluminium. They are harder but less forgiving: excessive sideways pressure can break them, and overheating can still remove their cutting hardness. Use a slow to moderate speed, allow the blade to do the cutting, and apply cutting lubricant when the material and manufacturer’s instructions permit it.
Bi-metal blades for longer service
Bi-metal blades combine a flexible alloy-steel body with a hardened high-speed-steel cutting edge. They cost more than basic HCS blades, but they tolerate vibration and interrupted cuts better. Choose bi-metal when you cut metal regularly, work with hardwood, or want one general-purpose blade family for demanding mixed materials.
Carbide-grit and diamond-grit blades for abrasive materials
These blades do not rely on conventional teeth. Carbide grit is useful for cement board, fibreglass, plasterboard and some tile-cutting applications. Diamond-grit blades are intended for particularly abrasive materials such as ceramic tile. They cut more slowly and usually leave a different edge than a toothed blade, but ordinary wood teeth will wear out rapidly in these materials.
Tooth count and pattern: choose speed or finish
TPI means teeth per inch. A low TPI gives larger gullets—the spaces that clear chips—so it cuts quickly but leaves a rougher edge. A high TPI removes less material per tooth and generally produces a cleaner edge, although it cuts more slowly and can clog or overheat if forced.
- 6–10 TPI: fast cuts in softwood and thick timber, especially when the cut edge will be hidden.
- 10–15 TPI: a useful middle range for hardwood, plywood and general-purpose woodwork.
- 15–20 TPI: cleaner cuts in thin wood, laminate, plastic and non-ferrous materials.
- 18–32 TPI: thin sheet metal and fine metalwork.
Blade thickness also matters. A thicker blade tracks straighter in long cuts and is less prone to bending, while a thin blade turns more easily for curves. For intricate scroll-like work, use a narrow, fine-tooth blade; for a straight cut through thick stock, select a wider blade with enough exposed length.
Common tooth patterns
- Milled and side-set teeth: fast, aggressive cutting with good chip clearance; appropriate for rough wood cuts.
- Ground teeth: sharper and usually cleaner, making them suitable for finish cuts in wood, plastic and laminate.
- Progressive-tooth blades: tooth size changes along the blade, combining quicker entry with a finer finish higher in the cut.
- Reverse-tooth or down-cut blades: teeth point toward the shank, reducing splintering on the top surface. They require more downward control and clear chips less aggressively.
- Wavy-set metal blades: teeth bend in a wave pattern to reduce binding when cutting sheet metal.
Shank styles: check compatibility before buying
The two common jigsaw shank styles are T-shank and U-shank. T-shank blades are widely used on modern tool-free jigsaws, including many models from Bosch and DeWalt. U-shank blades have a cut-out at the top and are found on some older or basic saws that use a screw or clamp. Some saws accept both styles, but compatibility must be confirmed in the tool manual rather than assumed from the blade packaging.
Shank style is separate from blade quality. A premium bi-metal blade is useless if its shank cannot lock securely into the saw. Before fitting a blade, check that the locking mechanism fully engages and that no part of the shank is bent or damaged.
Pick by situation, not by the largest assortment
| Your situation | Best starting choice | Why |
|---|---|---|
| Occasional DIY, mostly softwood | HCS T-shank set, 6–12 TPI | Low cost and enough range for common repairs |
| Frequent furniture or cabinet work | Ground-tooth HCS or bi-metal, 10–20 TPI | Cleaner edges in plywood, hardwood and laminate |
| Regular metal cutting | Bi-metal set, 18–32 TPI | Better resistance to heat, vibration and broken teeth |
| Many curved cuts | Narrow, thin blades with 12–20 TPI | Turns more easily without forcing the saw |
| Visible top surface on laminate | Reverse-tooth or down-cut blade | Limits chip-out on the finished face |
| Tile, cement board or fibreglass | Carbide-grit or diamond-grit blade | Conventional teeth wear too quickly in abrasive materials |
How to match blade length and cutting settings
Blade length should exceed the material thickness by roughly 10–20 mm while the blade is at the bottom of its stroke. For example, if you are cutting 35 mm timber, a blade with at least 45–55 mm of usable cutting length is a sensible minimum. A blade that is much too long can vibrate unnecessarily, while one that is too short may fail to clear chips and can catch below the workpiece.
- Mark the cut and support the workpiece close to the line to reduce vibration.
- Fit the blade with the correct tooth direction and confirm the shank is locked.
- Set orbital action low or off for metal, laminate and finish cuts; use more orbital action for fast rough cuts in wood.
- Start at a moderate speed and increase only if the blade cuts freely without burning or wandering.
- Guide the saw without twisting it. Forcing a curve sideways is a common cause of bent blades and inaccurate cuts.
For laminate, place painter’s tape over the cut line, support the finished face, and use a reverse-tooth blade when the saw’s base and technique allow it. For metal, clamp the sheet between sacrificial boards where practical. This reduces vibration and helps prevent the blade from snagging.
Durability, maintenance and replacement signs
The teeth usually wear first, but a blade can also lose accuracy when its body bends or overheats. Replace it when the cut begins wandering, the saw needs noticeably more pressure, the edge shows repeated burn marks, or several teeth are missing. Continuing with a dull blade increases heat and can damage the workpiece or motor.
After use, brush away chips and resin from the blade clamp and shoe. Do not bend blades back into shape or store loose blades where their teeth can strike one another. Keep metal-cutting blades separate from wood blades so abrasive metal filings do not contaminate other tools. A small assortment of specialised blades is normally more useful than a large set of nearly identical low-TPI blades.
Frequently asked questions
Are more teeth always better?
No. More teeth usually improve the finish, but they cut more slowly and can clog in thick or soft material. Match TPI to both the material thickness and the desired edge.
Can one jigsaw blade cut wood and metal?
A general-purpose bi-metal blade may handle occasional light cuts in both, but a dedicated wood blade will cut wood faster and a fine metal blade will perform better on sheet metal. Mixed-material work is a compromise, not a substitute for the correct blade.
Why does my jigsaw blade keep breaking?
Common causes include excessive sideways pressure, a dull blade, incorrect speed, inadequate workpiece support, or an incorrectly fitted shank. Reduce force, use a fresh blade with the appropriate TPI, and let the tool advance at its own cutting rate.
