| General Wood Cutting | 6–9 in | 5–8 TPI | High-carbon steel | 0.040–0.050 in / 0.75–1.00 in | Clean cuts in softwood, lumber, and plywood | 5 | 2 | 10–30 cuts | $3–$8 | 5 | Choose a lower TPI blade for speed and fast chip removal. |
| Demolition Wood with Nails | 6–12 in | 6–8 TPI | Bi-metal, impact-resistant HSS teeth | 0.050–0.062 in / 0.75–1.00 in | Framing lumber, pallets, roofing, and nail-embedded timber | 4 | 5 | 20–60 cuts | $7–$16 | 4 | Use a thick, flexible bi-metal blade when hidden nails are likely. |
| Fine Wood and Finish Work | 6–9 in | 10–14 TPI | High-carbon steel | 0.035–0.050 in / 0.50–0.75 in | Trim work, thin boards, plastic, and controlled cuts | 3 | 2 | 15–40 cuts | $3–$9 | 4 | Select more teeth per inch when surface finish matters more than speed. |
| Thin Metal Cutting | 4–6 in | 18–24 TPI | Bi-metal, cobalt-alloy HSS teeth | 0.035–0.050 in / 0.50–0.75 in | Sheet metal, conduit, tubing, and thin-wall steel | 3 | 4 | 10–35 cuts | $6–$14 | 4 | Keep at least three teeth engaged in the workpiece to reduce tooth breakage. |
| Thick Metal Cutting | 6–9 in | 10–14 TPI | Bi-metal, high-cobalt HSS teeth | 0.050–0.062 in / 0.75–1.00 in | Structural steel, angle iron, thick pipe, and rebar | 3 | 4 | 8–25 cuts | $8–$18 | 4 | Use moderate pressure and cutting fluid when permitted to control heat. |
| Stainless Steel | 4–6 in | 18–24 TPI | Cobalt-alloy bi-metal or carbide-tipped | 0.050–0.062 in / 0.50–0.75 in | Stainless tubing, sheet, and corrosion-resistant steel | 2 | 5 | 6–20 cuts | $10–$25 | 3 | A finer pitch and low cutting speed help prevent work-hardening. |
| Carbide-Tipped Metal | 6–9 in | 6–10 TPI | Carbide-tipped teeth with alloy steel body | 0.050–0.062 in / 0.75–1.00 in | Cast iron, hardened steel, thick stainless, and heavy pipe | 4 | 5 | 10–40 cuts | $18–$45 | 3 | Higher initial cost is justified for abrasive or difficult-to-cut alloys. |
| Pruning and Green Wood | 8–12 in | 3–6 TPI | Hardened high-carbon steel | 0.050–0.062 in / 0.75–1.00 in | Tree branches, wet wood, roots, and landscaping work | 5 | 3 | 20–70 cuts | $5–$14 | 5 | Choose a long blade with deep gullets for fast removal of wet chips and sawdust. |
| Masonry and Abrasive Materials | 8–12 in | Carbide grit; no conventional TPI | Carbide-grit coated steel | 0.050–0.062 in / 0.75–1.00 in | Brick, mortar, cement board, aerated concrete, and fiberglass | 2 | 4 | 5–20 cuts | $12–$30 | 3 | Use only on materials specified by the blade manufacturer and control dust carefully. |
| Universal Multi-Material | 6–9 in | 8–14 TPI variable pitch | Bi-metal, variable-pitch teeth | 0.050 in / 0.75–1.00 in | Mixed wood, plastic, thin metal, and occasional demolition | 4 | 4 | 15–45 cuts | $8–$20 | 5 | A practical choice when the material changes frequently and storage space is limited. |