◆Type and Technical Specification of bits for low pressure DTH Hammers
| Type | Number of Air hole | DIa.(mm) | Weight(kg) | Gauge Button | Front Button | Matching DTH Hammer |
| GL65PQ | 1 | 68-72 | 1.5 | 4×ф12 | 3×ф12 | GL65 |
| GL75PQ | 3 | 75-77 | 2.4 | 5×ф12 | 3×ф12 | GL70 |
| GL76PQ | 2 | 76-78 | 2.5 | 5×ф12 | 3×ф12 | GL76 |
| GL76-78 | 2 | 78-82 | 2.6 | 5×ф12 | 3×ф12 | |
| GL80PQ | 3 | 82-84 | 3 | 5×ф12 | 6×ф12 | GL80 /80X |
| GL90A | 3 | 90-95 | 3.6 | 6×ф14 | 4×ф12 | |
| GL80XD-90 | 3 | 90-95 | 3.4 | 6×ф12 | 4×ф12 | GL80XD |
| GL80-II-80 | 3 | 80-82 | 3 | 5×ф12 | 4×ф12 | GL80-II |
| GL90B | 3 | 90-95 | 3.8 | 6×ф14 | 4×ф12 | GL90/90-I |
| GL90T1 | 2 | 90-95 | 3.6 | 6×ф14 | 1×ф12 | |
| 3×ф12 | ||||||
| GL90T2 | 2 | 90-95 | 3.8 | 6×ф14 | 4×ф12 | |
| GL90T3J | 3 | 90-95 | 3.6 | 6×ф14 | 4×ф12 | |
| GL90T5 | 2 | 90-95 | 3.6 | 5×ф14 | 4×ф12 | |
| GL90-100 | 3 | 100-105 | 4 | 6×ф14 | 5×ф12 | |
| GL90-105 | 3 | 105-110 | 4.2 | 6×ф14 | 5×ф12 | |
| GL90-110 | 3 | 110-115 | 4.5 | 8×ф14 | 3×ф12 | |
| GL90-120 | 3 | 120-125 | 5 | 8×ф14 | 3×ф12 | |
| GL90-130 | 3 | 130-135 | 6.8 | 9×ф14 | 4×ф12 | |
| GL110-110 | 3 | 110-115 | 6.1 | 6×ф14 | 5×ф12 | GL110 |
| GL110-115 | 3 | 110-115 | 6.3 | 6×ф14 | 5×ф12 | |
| GL110-120 | 3 | 120-125 | 7 | 6×ф14 | 6×ф12 | |
| GL110-125 | 3 | 125-130 | 7.1 | 6×ф14 | 7×ф12 | |
| GL110-130 | 3 | 130-135 | 7.3 | 6×ф14 | 7×ф12 | |
| GL110-135 | 3 | 135-140 | 8 | 6×ф14 | 7×ф12 | |
| GL110-140 | 3 | 140-145 | 8.2 | 6×ф14 | 8×ф12 | |
| GL110-150 | 3 | 150-155 | 9 | 6×ф14 | 8×ф12 | |
| GL150-155 | 3 | 155-160 | 16.3 | 15×ф16 | 4×ф14 | GL150 |
| GL150-165 | 3 | 160-165 | 17.3 | 15×ф16 | 5×ф14 | |
| GL150-185 | 3 | 180-185 | 19.6 | 15×ф16 | 6×ф14 | |
| GL150-200 | 3 | 200-205 | 23 | 9×ф16 | 12×ф14 | |
| GL170-175 | 3 | 175-180 | 22.8 | 15×ф16 | 8×ф14 | GL170 |
| GL170-185 | 3 | 185-190 | 23.24 | 15×ф16 | 8×ф14 | |
| GL170-195 | 3 | 195-198 | 24 | 15×ф16 | 10×ф14 | |
| GL170-200 | 3 | 200-203 | 25.8 | 15×ф16 | 9×ф14 | |
| GL170-210 | 3 | 210-213 | 26.5 | 12×ф16 | 6×ф14 | |
| 6×ф16 | ||||||
| GL170-220 | 3 | 220-223 | 28.5 | 15×ф16 | 11×ф14 | |
| GL170-230 | 3 | 230-233 | 32 | 15×ф16 | 12×ф14 | |
| GL170-240 | 3 | 240-243 | 36 | 21×ф16 | 6×ф14 | |
| GL170-250 | 3 | 250-253 | 45 | 15×ф16 | 4×ф14 |
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