- 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.
