... , DTH hammer. Now we can supply 90mm-254mm(3.5"-10") DTH hammer, 340,350,360,380, COP44, COP54 ... 3"-8" DTH hammer, 340,350,360,380 4",5",6",8" quick hammer with very good price and service ... 2 3/8)" REG110-1354ZRC130G12551226751.0-2.525 (at 1.7Mpa)9-23API(2 3/8)" REG135-1555ZRC130G12551226761.0 ... /8)" IF135-1556ZRC130G12551226781.0-2.525 (at 1.7Mpa)9-23API(3 1/2)" REG135-1557ZRC130G-A12651105671.0-2.528 ...