- 135 degree split provides greater durability to reduce breaking
- Tapered web design for extreme durability and resisting breakage
- Tapered web eliminates the frustration of bit spinning in the chuck
- 3-Flats shank to reduce spin-out in the chuck
- High speed steel to be used in plastic, wood and metal
- Black and gold coating to help prevent rust and wear
- Size markings on the drill bit shank for identifying sizes quickly