38mm taper button bit - China Rock Tools Drilling
Other Names: Socket Bits,Drill Bits,Tapered Button Bits Manufacturers,Tapered Bits Suppliers,Rock Bits,Button Bits. Bit Diameter: 30mm, 32mm, 33mm, 34mm, 36mm, 38mm, 40mm, 41mm, 42mm. Taper Degree: 6, 7, 11, 12 Degree. Material: Alloy Steel Bar 45CrNiMoV And Tungsten Carbide Tips YK05
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