We are specialized in supplying high quality DTH drilling products which is for mining, quarrying, well drilling and foundation drilling. Our products range is as follows:1, DTH/ITH hammer range:3" DTH hammer: DHD 3.5, COP 34, COP 32, Mission 30, BR 3, Mach 303;4" DTH hammer: DHD 340/COP 44, COP 42, QL 40, SD 4, Mission 40, XL 4, Mach 44;5" DTH hammer: DHD 350/COP 54, COP 52, QL 50, SD 5, Mission 50, XL 5;6" DTH hammer: DHD 360/ COP 64, COP 62, QL 60, SD 6, Mission 60, XL 6;8" DTH hammer: DHD380, QL 80, SD 8, Mission 80;2, DTH hammer bits range:3" DTH hammer bits (90mm - 105mm): DHD 3.5, COP 34, COP 32, Mission 30, BR 3, Mach 303;4" DTH hammer bits (105mm- 130mm): DHD 340/COP 44, COP 42, QL 40, SD 4, Mission 40, XL 4, Mach 44;5" DTH hammer bits (130mm- 152mm): DHD 350/COP 54, COP 52, QL 50, SD 5, Mission 50, XL 5;6" DTH hammer bits (152mm- 171mm): DHD 360/ COP 64, COP 62, QL 60, SD 6, Mission 60, XL 6;8" DTH hammer bits (200mm- 305mm): DHD380, QL 80, SD 8, Mission 80, COP 84;3, Drill rods diameter range: 76mm, 89mm, 102mm, 114mm, 127mm;4, ODEX overburden drilling system:ODEX 90, ODEX 115, ODEX 140, ODEX 144, ODEX 165 , ODEX 190, ODEX 240,5, Symmetrix overburden drilling system and spare parts.Mr Jack Chan/ Products Manager Mob: +86-13985434402 Guizhou Sinodrills Equipment Co., LTD. www(dot)sinodrills(dot)net jack(at)sinodrills(dot)com Tel: +86-851-6821628, 6821268, 6800738, EXT: 8012; Fax: +86-851-6830552