DTH bits(85mm-1200mm)

Changsha Tianhe Drilling Company can manufacturer a wide range of drill bits for our own DTH hammer and other brands of hammer. such as DHD,COP,SD,QL,MACH,MISSION,BR,NUMA shank. Main specifications:85mm-1000mm

Model Bit diameter mm(inch) Weight TH79(3.5inch) 90mm-100mm(3 1/2-3 7 /8) 4-4.5 DHD3.5 90mm-105mm(3 1/2-4 1/8) 4.5-5.5 BR33 90mm-100mm(3 1/2-3 7 /8) 4-4.5 DHD340 105mm-138mm(4 1/10-5 2/5) 8-12 QL40 110mm-133mm(4 3/8-5 1/4) 10-12 DHD350 135mm-165mm(5 3/10-6 1/2) 15.2-18 MISSION50 138mm-165mm(5 2/5-6) 16-18 QL50 138mm-152mm(5 2/5-6) 16-18 SD5 138mm-152mm(5 2/5-6) 16-18 MAHC50 138mm-152mm(5 2/5-6) 16-18 DHD360 152mm-203mm(6-8) 24-33 MISSION60 152mm-203mm(6-8) 21-30 SD6 152mm-254mm(6-10) 24-50 QL60(COP64G) 152mm-203mm(6-8) 24-33 XL60 152mm-190mm(6-7 1/2) 22-27 DHD380 200mm-305mm(7 7/8-12) 47-82 SD8 200mm-305mm(7 7/8-12) 47-82 QL80 200mm-305mm(7 7/8-12) 48-84 TH220 240mm-350mm(9 2/5-13 7/10) 75-125 NUMA100 240mm-350mm(9 2/5-13 7/10) 75-125 SD10 240mm-350mm(9 2/5-13 7/10) 75-125 DHD112 310mm-444.5mm(12 1/5-17 1/2) 140-252 SD12 310mm-444.5mm(12 1/5-17 1/2) 142-254 NUMA120 310mm-444.5mm(12 1/5-17 1/2) 140-252 TH398(20inch) 500mm-550mm(19 3/5-21 3/5) 480-510 TS398(20inch) 500mm-550mm(19 3/5-21 3/5) 480-510 TH600(32inch) 800mm-1000mm(31 2/5-39 3/10) 680-984