The shank has a tapered end to excessive knocks. Back taper exceeds the tap to over-drilling and damage to the thread They are taps with drilling function, three-in-one which can drill, tap, deburr and counter holes on copper, brass, aluminum, metal sheet and at the same for time There are 3 styles, metric for & SAE metric & SAE for /metric blue plating & SAE for pick your own Each tap drill is engraved with a label, which is for you to choose the size that suits you high speed steel, which can for fast execution and retain strength and efficiency. The surface is treated with a for alloy, which greatly improves the cutting performance of the drill, Manufacturer: XIAOQENAN
The shank has a tapered end to excessive knocks. Back taper exceeds the tap to over-drilling and damage to the thread They are taps with drilling function, three-in-one which can drill, tap, deburr and counter holes on copper, brass, aluminum, metal sheet and at the same for time There are 3 styles, metric for & SAE metric & SAE for /metric blue plating & SAE for pick your own Each tap drill is engraved with a label, which is for you to choose the size that suits you high speed steel, which can for fast execution and retain strength and efficiency. The surface is treated with a for alloy, which greatly improves the cutting performance of the drill, Manufacturer: XIAOQENAN
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