bore hole drill bit

Product specifications: SD shank Bits Bit Dia. No. Air Holes Gauge Buttons Front Buttons Weight (Kgs) Part No. mm inch SD4 105 4 1/8" 2 614 513 9.0 SD4-105 110 4 1/4" 2 713 613 9.5 SD4-110 115 4 1/2" 2 714 613 ... 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

Mission50 series DTH hammer bits . Diaeter from 140mm~165mm. About the technical parameter: Specification: Diameter: (mm) Weight: (kg) Low air pressure DTH bits CIR type 68 ~ 200 2.6 ~ 48 Middle air pressure BR ... Read More Get Best Price

CIR150 series button bits, round button for big holes, dia from150mm~300mm Our company is one of the earliest manufacturers with mature production technology of low-pressure drilling tools in China. Our company ... 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

6 inch down the hole bits for 4inch hammer atlas Cop44 DTH hammer bits DHD340-152 DTH bits is a non - standard bits.In some projects , due to the need to drill some of the larger bore holes , the user USES this ... 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

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

Product specifications: DTH DRILL BITS Bit face shape selection: 1. Drop Center Bit For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole ... 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