Min. Order Reference FOB Price
1 Piece US$100.00-7,000.00 / Piece
Product Description
QL40 QL50 QL60 QL80 diamond enhanced dth bits for rock drilling water well and mining Use DIAMOND BUTTONS to improve DTH bit wear resistance and thermal stability. Compared with tungsten carbide DTH bit, the service life can prolong more than 6 times. Left 1-2 are tunsgten carbide DTH ...