Description

100% Brand New and High Quality

Material: High Speed Steel (HSS 4241 )

Type: Tap Drill Bit

Hex Shank: 1/4''(6.35mm)

Thread Diameter: M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5

Feature:

Perfect for soft tapping metal, Aluminum, Wood, Plastic, etc.

Multi-use drill tap deburr countersink hex bit kit.

The advantage is 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.

Package include: 

6 x Tap Drill Bits