Feature:
Designed with spiral flutes, better chip clearing process.
Self-centering point, do not need assistant center drilling or center punching.
Complete hole drilling, tapping, deburring and countersink in one operation with power drill, saves labor and time.
Suitable for drilling, tapping, cutting on wood, soft metal, aluminum plate, iron, plank, plastic etc.

NOTE:
Hex shank drill bit is suitable for rapid drilling and tapping. It is recommended to use with tapping machine.
The material's temperature will get very high during drilling, please add some water or coolant to avoid it get smoke.

Specification:
Material: HSS (High Speed Steel)
Surface Treatment: Blackening Finish
Pitch: 0.7
Thread Size: M4
Hex Shank Side Width: 6.3mm / 1/4 inch
Thread Length: 22mm / 0.87 inch
Total Length: 67mm / 2.6 inch

Package Content:
2 x Twisted Tap Drill Bit