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DTH Hole Opener

Prodrill are professional designer and manufacturer for the following products: The most advanced high air pressure DTH hammer in China, various kinds of DTH bits, eccentric drilling equipment, symmetric drilling equipment, casing System, various kinds of threaded drilling bits, reverse circulation hammers and bits, shank adapters and coupling sleeves, new-style wells geothermal drilling rig, open-air blasthole drilling rig, all kinds of tool joints and drill pipes and spare parts for drill rig.

DTH Hole Opener

DTH bits for hole opener
1.manufacture as your requirement
2.bit diameter, face shape
3.carbide button shape
4.number of air hole

DHD360-152-254MM

Remark Qty.× Button Dia.(mm)
Shank GuideDia. (1) Reamed Dia. Weight
(mm) (mm) (kg)
Outer Front
For 3.5" hammer DHD3.5 95 130 6×14+ 4×11+3×11 8.5
2×14
DHD3.5 80 165 8×14 8×13+6×11 15.1
100 165 8×14 4×13+4×12+3×12 14.5
DHD3.5 110 165 8×14 4×13 15.2
100 165 8×14 4×13+4×12+3×12 14.5
115 171.5 9×16 6×14 16.1
For 5" hammer DHD350R 75 152 8×18 6×14+2×14+2×14 35.2
For 6" hammer DHD360 165 191 10×16 3×14+4×14 74.5
DHD360 108 220 10×18 12×18+2×14+2×14 79.3
DHD360 165 254 12×18 12×16+4×14+5×14 65.3
For 8" hammer DHD380 140 200 10×18 8×12+2×14+4×14 10.6
DHD380 188 254 22×18 2×18 147.4
DHD380 152 305 14×18 10×18+16×16 107.8
DHD380 210 381 16×18 28×18 120.5
For 12" hammer DHD112 216 312 18×18 15×18+6×16+6×14 133.6
DHD112 254 375 18×18 12×18+15×18 136.2
DHD112 311 444.5 18×19 15×19+21×19 328.5