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Our tapered button bit was from high quality cemented carbide and produced with heat treatment technology,which connected with tapered drill rod well for air leg or hand-held rock drill machine for drilling holes in gold and coal mining,marble and granite
quarries,stone project, tunnel, water conservancy,etc.
Feature: 1.High performance,durable quality ,competitve price 2.Wear Resistant,used in hard rock formation 3.Adequate for various construction conditions 4.Strong corrosion resistance