Drill Bit, Hole Saw, Saw Blade manufacturer / supplier in China, offering 3 PCS Hex Shank HSS Titanium Coated Step Drill Bits Set, 4-/12/20/32mm, HSS Titanium Coated Spiral Flute 1/4" Hex Shank Power Tools 4mm to 32mm, HSS Spiral Grooved Metal Steel Step Drill Bit and so on.
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