Description:

CONSTRUCTION GRADE: Made of HSS high speed steel, impact resistance, wear resistance. PERFECT CUTTING: 40mm hole drill bit cut clean, round holes in iron, aluminum plate, alloy plate, plastic sheet. CLEAN EDGE DESIGN: With the non-binding clean edge design, this hole saw cuts smooth and easy. PROJECT TOOL: perfect for Installing Locks, Knobs in Doors and Cabinets in Seconds. VERSATILE USE: Openings for iron, aluminum, and various types of pipes.