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 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 Metric: M3X0.5, M4X0.7, M5X0.8, M6X1, M8X1.25, M10X1.5, SAE: 1 / 4-20NC, 12-24NC, 10-24NC, 10-32NC, 8-32NC, 6-32NC, Manufacturer: Buxuaaaa
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 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 Metric: M3X0.5, M4X0.7, M5X0.8, M6X1, M8X1.25, M10X1.5, SAE: 1 / 4-20NC, 12-24NC, 10-24NC, 10-32NC, 8-32NC, 6-32NC, Manufacturer: Buxuaaaa
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