Actool ACTOOL Industrial HSS Step Drill Bit 3/16 inch to 7/8 inch with 3/8 inch Shank, Double Spiral Flute with 12 Step Size

description About this item Made of industrial-grade M2 high speed steel, heat treated for maximum durability Two flute spiral design provides longer life and better chip removal,3 flatted shank prevents slipping in drill chuck Drills 12 hole sizes from 3/16 inch to 7/8 inch in 1/16 inch increments CNC fully grinding for longer tool life to save drilling cost Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates See more product details