HSS CO Cobalt M35 Spiral Flute Step Drill Bit 1/4" Hex Shank 3-12 4-22 6-24mm
ab 8,77 €
Does not need center punch to assist it, compared with ordinary hemp flower drill, it is stabler and difficult to be broken. It is suitable for being installed on the pistol drill and bench drill, applicable for punching on these harder workpieces, such as stainless steel, carbon steel, aluminum plate, iron plate, etc.
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