6Pcs Spiral Tap Drill Multifunctional HighSpeed Stainless Steel Sturdy Durable Hex Shank Drill Bit
Описание
1、These spiral tap drill bit is made from high?speed steel which is rustproof strong and durable. 2、Multifunction suitable for drilling tapping cutting on soft metal aluminum plate iron etc. 3、Surface of these spiral tap drill bit is coated with blue makes these cutters more durable. 4、Self?centering design do not need assistant center drilling or center punching. Giving more convenience. 5、Drilling and tapping in one one?step processing greatly save processing steps and time costs improve working efficiency.
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