ADD: 03c4, 8/F, Bldg. D, Xiamen Internation Al Shipping Center, No. 97 Xiangyu Rd., China (Fujian) Pilot Free Trade Zone Xiamen Area,Fujian, China
MOBILE/WHATSAPP: +86-178 5050 2302
E-MAIL: info@gmd-eqpt.com
Coupling sleeve is widely used for extension rod and drill bits connection.GMD could supply Coupling, such as R25, R28, R32, R38, T38, T45, T51, R28-R32, R28-R38, R32-T38, R32-R38, R25-R32, R32-T45.
The “DTH” is the abbreviation of “Down The Hole” and sometimes it is also called “RAB” in some markets, and the “RAB” is short for “Rotary Air Blasting”.
DHD Cemented Carbide DTH Drill Bit is Mainly used for Quarrying, Ore Mining, Coal Mining, soft, medium hard, and hard rock, blast hole drilling and water well drilling project, Marble quarry or...
DHD Shank DTH Button Bit is Mainly used for Quarrying, Ore Mining, Coal Mining, soft, medium hard, and hard rock, blast hole drilling and water well drilling project, Marble quarry or well...
DTH Bits are Mainly used for Quarrying, Ore Mining, Coal Mining, soft, medium hard, and hard rock, blast hole drilling and water well drilling project, Marble quarry or well drilling and other...
QL Shank DTH Bit is mainly widely used for produce large-diameter holes in rocks for water-well drilling, tunnels, mineral exploration, geothermal drilling, subway engineering drilling.
COP Shank DTH Button Bit is mainly used for Quarrying, Ore Mining, Coal Mining, soft, medium hard, and hard rock, blast hole drilling and water well drilling project.
The “DTH” is the abbreviation of “Down The Hole” and sometimes it is also called “RAB” in some markets, and the “RAB” is short for “Rotary Air Blasting”.