DEWALT'a 3-piece impact-ready step drill bit set. This package includes a 1/8 – 1/2 in bit, a 3/16 – 1/2 in bit, and a 3/16 – 7/8 in bit. Titanium two flute spiral design provides longer life and better chip removal. Split point tip increases speed. Laser engraved numbers increases step visibility. Optimized for your DeWALT impact driver with its 1/4 in hex shank.