6x HSS Hex Shank Tap Drill Bits Metric Thread Screw Compound Tapping Set Tool

• 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.

Package: 6x Drill Tap Countersink