Stainless and alloy-steel cold cutting gums the blade and work-hardens. This article gives a "sharp + mirror polish" regrind plan for high-rake sharp-tooth cold-saw blades (rake 8–12°): each blade reused 3–5 times, gumming/hardening defects cut 50–70%.

A stainless / alloy-steel mill mainly cutting 304/316 stainless and alloy-steel bars/pipes on high-speed cold saws; the material is sticky and hard, easy to work-harden. Smooth, burr-free end faces are required; blade diameter 285–460 mm.

• ⚠Gumming: stainless is sticky; chips weld to the tooth face and cutting force spikes.
• ⚠Work hardening: a dull blade squeezes the surface hard, making it harder to cut.
• ⚠Poor end face: the hardened layer leaves a rough, discolored cut.
• ⚠Frequent blade change: gumming accelerates wear; a new blade dulls in days.

• ✓Tooth form: high-rake sharp TCG (8–12°), easy cut, anti-gum.
• ✓Teeth: 80–110T by wall thickness.
• ✓Material: fine-grit carbide, mirror edge, anti-stick.
• ✓Spec: 285/315/360/460 mm dia, bore per machine.

• ✓Each blade reused 3–5 times, regrind cost ≈ 30–45% of new (by condition).
• ✓Gumming/hardening defects down 50–70%, smoother end face.
• ✓Blade-change downtime down 40%+, steadier cold-cut cycle.