rock boring bits

CIR50 dth bits diameter 50~60mm. 30% speed up than hand hold rock drill machine CIR Hammer is a new product combining the advantages of DHD Hammer and QCZ Hammer. The wind pressure of working is between 0.5-0... Read More Get Best Price

CIR65 series down the hole button bits,working pressure 0.5~0.8Mpa Characteristics of low air pressure series dth drill bit:The dth drill bit is a kind of bit which is used with the submersible percussion ... Read More Get Best Price

CIR90 series dth bits , most widly use product in world,energy saving and cost effective CIR90 series is the most used product in mining, It's a kind of drill bit which is cost-effective and energy saving. the ... Read More Get Best Price

CIR110 DTH hammer bits , diameter from 110mm to 200mm. QIDELI drilling tools CIR110 series is the most used product in mining, It's a kind of drill bit which is cost-effective and energy saving. the hole ... Read More Get Best Price

Product Description CIR90 Low Air Pressure DTH Hammer and Bits CIR Hammer is a new product combining the advantages of DHD Hammer and QCZ Hammer. The wind pressure of working is between 0.5-0.7MPa. The CIR ... Read More Get Best Price

China Supplier 3 inch down the hole rock drill bits with high air pressure hammer 3 inch dth hammer bits for miningis the tool cutting rock. Sinodrills DTH bits are made of superior quality alloy steel which is ... Read More Get Best Price

China Supplier 3 inch down the hole rock drill bits with high air pressure hammer A wide range of products, including DTH Bits, DTH Hammer, DTH Drill Tube, ODEX & RC Drill Tools, Down The Hole (DTH) Drilling ... Read More Get Best Price

90mm(3 1/2") dth drill bits for QL30 hammer bits with foot vlave. Down the hole(DTH) tools manufacturer KINGDRILLING supply DTH Drill Bits with QL shank type are available in a wide range of sizes and with a ... Read More Get Best Price

Product Description DTH Drill Bits are produced from premium quality nickel-alloy steel for increased durability and wear characteristics. Specific heat treatment standards and special "stress relief" processes ... Read More Get Best Price

Diameter 152mm cop44 shank DTH bits , high wear resistance caibide DTH Drill Bits are produced from premium quality nickel-alloy steel for increased durability and wear characteristics. Specific heat treatment ... Read More Get Best Price