China Bestlink Down The Hole Drilling DTH Hole Opener Button Bit, Find details about China DTH Hole Opener Bits, DTH Bit from Bestlink Down The Hole Drilling DTH Hole Opener Button Bit
Remark | Shank | GuideDia. (mm) | Reamed Dia.(mm) | Qty.× Button Dia.(mm) | Weight(kg) | |
For 3.5" hammer | Outer | Front | ||||
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 |