HSS Metric Tap Drill Bit 6pcs Set M3 to M10 Size DIY & Home Tools

- Perfect for soft tapping metal, Aluminum, Wood, Plastic, etc.
- Multi-use drill tap deburr countersink hex bit kit.
- Opening, tapping, chamfering.
- Hole drilling, tapping and deburring/countersinking.
- Decrease processing steps and save time, improve working efficiency.
- Back tapered beyond tap to prevent thread damage from over-drilling.
- Its a spiral groove, within the processing thread, cutting up to exclude, and  was curled applied internally threaded through holes.
- You can also insert the screws - in the hole where have been drilled.

NOTICE:
1.Please add some oil before operate the tap, so the operation is smoother, and  also to extend the life of the tap.
2.Application: High Speed Steel 6542 is suitable for wood, aluminum, iron and  other lower hardness material, the material thickness is 3-5mm.
 Caution if you used it with hard meta.
6x  Drill Tap Countersink

1x  Storage Box