- ThunderBit high performance drills are made from industrial grade, high-speed M-7 steel and feature black and bronze oxide finish for longer life and heat resistance
- The 135 deg split point allows for quick penetration and reduced walking
| Type | Drill Bit |
| Style | Thunderbit® |
| Size | #21 |
| Material | M-7 High Speed Steel |
| Length | 3-1/4" |
| Drill Style | Numbered |
| Flute Length | 2-1/8" |
| Shank Size | 0.159 |
| Point Type | 135° Split Point |
| Finish | Black and Bronze Oxide |
| Application | For use in Iron, Steel, Stainless Steel and Wood. |
| Cutting Direction | Right Handed |
