Stone Tool's 29 piece jobber black & gold drill bit set is constructed of industrial quality high speed steel and vacuum treated to achieve hardness of HRc 64-66. Add this drill bit set to your HomElectrical.com cart today!
- 29 Piece Set: 1/16-in to 1/2-in by the 64ths.
- Industrial Quality High Speed Steel.
- Precision grounded from solid for true, round holes when cutting.
- Vacuum heat-treated to achieve hardness of HRc 64-66.
- 135 degree Split Point prevents and reduces wobbling and walking.