ACENIX® 6pcs HSS Countersink Tap Drill Bit Set, Combination Hex Shank Titanium

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. 

• Practical fittings, 1/4 inch hex shank, quick and easy to change. Self-centering point, no need assistance in center drilling or center punching
• 6 steel drills, suitable for drilling wood, plastic, fine copper, aluminum and other soft metals (5-6 mm), not for hard materials (eg steel sheet).
• Drilling and tapping at the same time, one-step processing. Greatly decrease processing steps, save time and improve working efficiency.