Performance Tool step drill bits are built to last! These 3-piece step drill bit sets are no exception! Each drill bit features a titanium nitride coating to withstand very high-temperature drilling applications for extended periods of time. They're ideal for drilling repetitive holes in steel, copper, brass, plastic, Plexiglas, and other materials.
Use this step drill bit to drill through sheet metal without warping or spinning it
Drill holes progressively larger without having to change drill bits
The 6 step bit includes sizes 3/16, 1/4, 5/16, 3/8, 7/16 and 1/2 in., The 9 step bit includes sizes 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16 and 3/4 in., The 13 step bit includes sizes 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16 11/32, 3/8, 13/32, 7/16, 15/