kts12 2 Pcs,28,30MM Drill Bit Hole Saw Core Drill Hole Drill Drilling High-speed Drill Bit Hole Saw

Features: - High speed steel material,durable and practical. - Triangular shank design prevents bit slippage and stable operation. - computer indexing,high speed grinding,high precision,less hole opening error. - Drill wall thickness 2mm, increase the service life of the drill. - Perfect for installing locks, Knobs in doors and cabinets or drilling larger diameter holes through desks etc. - Cuts steel, Stainless steel, Copper, Brass, Aluminum, Fiberglass, Formica and other laminates in seconds. - Application for Thin metal, iron plate, channel steel, aluminum alloy.