描述
- ►High cobalt stainless steel drill bit with high .hardness, rust proof, sturdy and durable.
- ►For plastic, aluminum alloy, tin alloy, copper and other metal blind hole processing. 3-4mm.
- ►High cost performance and practicability. Opening hole, tapping chamfering, all in one step.
- ►Save the processing time and energy greatly, improve the work efficiency.
- ►Using drill edged principle, fast replacement composite cone. Self-centering point, do not need assistant center drilling or center punching. Convenient for using.
Size: Size: Hex Shank Diameter: 7mm M3*0.5: Spiral Tap Length: 65mm, Thread Length 17mm. M4*0.7: Spiral Tap Length: 67mm, Thread Length 21mm. M5*0.8: Spiral Tap Length: 67mm, Thread Length 22mm. M6*1: Spiral Tap Length: 68mm, Thread Length 24mm. M8*1.25: Spiral Tap Length: 70mm, Thread Length 31mm. M10*1.5: Spiral Tap Length: 72mm, Thread Length 35mm. Note: M3 means for 3mm screw, 0.5 means wire distance, also called coarse teeth. Adopt from metric system. Package Included: 6PCS Spiral Tap
