Irwin 373314BX Bimetal Holesaw, 3-1/4" Double Strength Coast Guard approved

Coast Guard approved

Silica powder formula is effective and long-lasting

reduces friction and wear on moving parts

Will not kill plants or shrubs

Lightweight

Irwin 373314BX Bimetal Holesaw, 3-1/4" Double Strength Coast Guard approvedVariable depth gullets provide more efficient chip clearance; 4 6 variable pitch teeth for reduced noise and improved performance. Electron beam weld for stronger, longer lasting teeth. Will cut holes in aluminum, copper, iron, stainless steel and zinc. Highlights: Hole dia. 3 1 4" Variable 4 6 pitch tooth design Bi metal variable pitch Super sharp teeth cuts faster and dulls less Sharp, variable tooth design for fast cutting Bi metal construction for