HUAZHICHUN 6Pcs Drill Tap Combination Bit Set, 1/4\ Hex Shank High Speed Steel Drill Bit Spiral Screw Thread Taps Drill Bits Set HSS 4341 Imperial Counter Sink
- This drill bit set includding -1/8" (3.175mm), 5/32" (3.97mm), 3/16" (4.76mm),1/4" (6.35mm), 5/16" (7.94mm), 3/8" (9.53mm)..
- Self-centering point, do not need assistant center drilling or center punching..
- Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency..
- High hardness, rustproof, solid and durable.Suitable for drilling, tapping, cutting on soft metal, aluminum plate, iron, etc..
- Great for fast drilling, tapping,etc. And Fast replacement composite cone, uses drill edged principle. It ensures a longer service life from your bits..