Click on the following link for product video demo presentation. https://youtu.be/TkQd6-lI058

Steel inner thread Tapping Drill Set Titanium Coated, M3-M8 Strong Hex Shank Screw Tap


This set of steel inner thread set works great in drilling and tapping and it has 5 sizes in a set, which would meet your different demands perfectly.
Fast replacement composite cone, uses drill edged principle.
Provides complete hole drilling, tapping & deburring / milling in one operation with a drill-saves work, time.
It's also applicable to certain types of carbon steel and ordinary steel, copper, and aluminum magnesium alloy drill hole.


Material: High-speed steel,Surface is coated with titanium or not for anti-oxidation and makes these cutters more durable.
Self-Centering Design: Self-centering point, do not need assistant center drilling or center punching.
Save Time: Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency.
Drilling and tapping 2 in 1, suitable for wood, plank, aluminium plate or sheet iron.
It includes 5 sizes in one drill bit set(M3*50mm, M4*55mm, M5*60mm, M6*70mm M8*70mm).