M3 Bi-Metal Electricians Holesaw Kit

Bi-metal construction, hardened HSS teeth and flexible high carbon steel backing. Used for working in cast steel, malleable cast iron, stainless steel, structural steel, alloyed and non alloyed aluminium, bronze, copper, PVC, acrylic and wood. Contains 16, 20, 25, 32, 40 and 51mm holesaws with 2 arbors.