EXACT 4-Piece Cone Cutter Set for Metal, 30.5mm Max, 3mm Min, HSS Bits

HSS TiAlN-coated hole cutter for particularly hard materials; glides easily and not prone to wear
For burr-free drilling and planing sheet metal, pipes and profiles
Suitable for construction steel, CrNi steel, non-ferrous metals, Plexiglas, plastic and wood up to 5 mm thick
Crosswise grinding, no centre-punching necessary, drill bits do not run
Diameter guide lasered into the tap, legible even when rotating
Three-faced driving shaft, prevents slipping in the drill chuck

Not suitable for aluminium. Use without cooling agents.