Driak 6pcs HSS Screw Countersink Drilling Bits M3-M10 Combination 1/4\ Hex Twist Tap Drill Dit Set
- 6PCS Hex Shank High Speed Steel Spiral Screw Thread Taps Drill Bits Set.
- Suitable for soft tapping metal, aluminum, iron.
- Complete hole drilling, tapping, deburring and countersinking in one operation with power.
- Made from hardened high-speed steel vs carbon steel for longer life.