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Get PriceBlow Frequency 30 60 Blows/Sec Top Hammer 25 35 Blows/Sec DTH Rod/Tube diameters 23 140 mm Top hammer drilling principle When the piston hits the shank kinetic energy in the piston creates a compressive wave in the string of drilling tools that will cause the bit to penetrate the rock
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Get PriceUS$ 315/Piece 1 Piece Product name DTH Hammer Bit Transport package Wooden Box Specification DTH drill bit Hs code 82071910 Production capacity 10000 Category Drilling Tools in China Subcategory Drill bit Subcategory 2 Tools hardware Listing ID 76709928 Description 60 240mm rock mining coal mine dth hammer drill bit set
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