Saw Blade Tooth Count Guide
Suggested tooth count
60
How it works
Saw blade tooth count determines cut quality and cutting speed. The Saw Blade Tooth Count Guide recommends the appropriate blade based on material type, thickness, and desired finish quality.
**The tooth count trade-off** Fewer teeth: faster cut, rougher edge, more chip-out. More teeth: slower cut, smoother edge, less chip-out. For ripping (cutting with the grain in wood), 24-tooth blades clear sawdust from deep kerfs efficiently. For crosscutting (across grain), 60 to 80-tooth blades produce smooth, tear-out-free edges.
**Material-specific blades** Solid wood: 40-tooth combination blade handles both rips and crosscuts. Plywood: 40 to 60-tooth alternate top bevel (ATB) blade minimizes chip-out on face veneers. Melamine and laminate: 80 to 100-tooth triple chip grind (TCG) blade prevents delamination. Aluminum and plastic: non-ferrous metal blades (80T, TCG, negative rake).
**Blade diameter** 10-inch blades are standard for table saws and miter saws. 7-1/4-inch for circular saws. A 7-1/4-inch 40-tooth blade has more teeth per inch than a 10-inch 40-tooth blade — producing a finer effective cut.
**Blade maintenance** A dull blade requires more feed force, causes burning, and creates safety hazards. Signs of dullness: burning smell, rough finish, blade deflection. Professional sharpening costs $10 to 20 per blade; carbide-tipped blades can be sharpened 5 to 10 times.
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Frequently Asked Questions
- Burn marks result from heat generated by blade friction. Common causes: (1) Feeding too slowly — the blade stays in contact with the wood longer per inch traveled, generating more heat. Try a faster, more confident feed. (2) Dull blade — requires more force and heat per cut. Sharpen or replace the blade. (3) Too many teeth for the material — fine-tooth crosscut blades on thick softwood generate heat because chips can't clear fast enough. Try a lower tooth count. (4) Resin buildup on the blade — caked resin insulates the teeth from the work and creates friction. Clean with blade cleaner or acetone. (5) Bent or set-less teeth — teeth need proper side set to clear the kerf.
- Never use a wood blade on steel. The carbide teeth shatter on impact with ferrous metal. You may use a wood blade on very thin aluminum sheet metal (under 1/8 inch) with very slow feed and adequate lubrication, but a dedicated non-ferrous metal blade is safer and produces far better results. Non-ferrous metal blades (for aluminum, brass, copper) have a negative or zero rake angle and fine, triple-chip grind teeth. For cutting thin aluminum, plastic, and composite panels, an 80-tooth or 100-tooth non-ferrous blade at appropriate RPM works well. Always wear eye protection — aluminum chips are sharp and fly at high speed.
- Sharpening is viable when: carbide tips are intact but dulled, cut quality has degraded gradually over time, cuts require more feed force than usual. Replace the blade when: carbide tips are chipped, cracked, or broken — chipped tips cannot be sharpened back to full performance; multiple missing tips; body is warped or cracked; blade has been overheated (tips turn blue/black). Cost-benefit: sharpening costs $10–20; a new quality blade costs $30–80. Blades can typically be sharpened 5–10 times before the carbide tips are too small to hold proper geometry. Mark each sharpening on the blade with a paint marker.
- These codes describe tooth grind geometry. ATB (Alternate Top Bevel): teeth alternate between left-leaning and right-leaning bevel angles. Slices wood fibers cleanly — ideal for crosscutting solid wood and plywood. TCG (Triple Chip Grind): alternates between flat-top teeth and chamfered teeth. Recommended for cutting laminates, melamine, MDF, and non-ferrous metals because it reduces chip-out on brittle materials. ATBR (Alternate Top Bevel with Raker): 4 ATB teeth followed by 1 flat raker tooth. The raker clears chips; ATB teeth cross-cut cleanly. Good combination blade for both ripping and crosscutting. HiATB (High Angle ATB): steeper bevel angle (up to 40 degrees) for very clean cuts on hardwoods and veneered panels.