Performance Tool step drill bits are built to last! These 2-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.
| Step Drill Bit Size |
|---|
| 1/4, 25/64, 35/64, 11/16, 13/16, 7/8, 1, 1 1/8, 1 7/32, 1 1/4, 1 3/8 in. |
| 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8 in. |