Drill Bit Size: 12MM,16MM,19MM

Shank Size : 1/4 Inch

High Speed Steel    (High Carbon Steel ,Carbide Tipped are Available)

5 Flutes    (4 Flute,3 Flute ,2 Flute ,Single Flute  are Available)

Quick Change Hex Shank    (Round Shank is Available)

Black and White    (White, Tin-Coated , TiAlN-Coated are Available)

1.Made from industrial grade High-Speed Steel for increased durability. Black oxide finish adds corrosion resistance.

2.Five-flute design reduces vibration for smoother drilling and extended bit life.

3.Precision-ground 82-degree tip drills countersink holes into most machinable metals, as well as wood and plastic.

4.Universal 1/4 inch hex shank prevents slipping in standard chucks and is compatible with all 1/4 inch quick-change chucks, including impact drills;

5.Chamfering device: five blade, which can discharge the sawdust more quickly, drill out smooth and smooth sinks, and insert the screw cap into the surface of the workpiece.