◆Type and Technical Specification of bits for Through Reverse Circulation DTH Hammers
| Type | Number of Air hole | DIa.(mm) | Gauge Button | Front Button | Matching DTH Hammer |
| GLF335-95 | 2 | 95-98 | 8×ф14 | 6×ф13 | GLF335 |
| GLF335-105 | 2 | 105-108 | 8×ф14 | 6×ф13 | |
| GLF345-115 | 2 | 115-118 | 8×ф14 | 7×ф13 | GLF345 |
| GLF345-130 | 2 | 130-133 | 8×ф14 | 7×ф13 | |
| GLF355-140 | 2 | 140-143 | 8×ф14 | 8×ф13 | GLF355 |
| GLF355-152 | 2 | 152-155 | 8×ф14 | 7×ф13 | |
| GLF365-178 | 2 | 178-181 | 8×ф16 | 8×ф14 | GLF365 |
| GLF365-194 | 2 | 194-197 | 8×ф16 | 8×ф14 | |
| GLF365-203 | 2 | 203-206 | 8×ф16 | 12×ф14 | |
| GLF385-203 | 2 | 203-206 | 8×ф16 | 12×ф14 | GLF385 |
| GLF385-216 | 2 | 216-219 | 8×ф16 | 12×ф14 | |
| GLF3105-254 | 2 | 254-257 | 10×ф18 | 14×ф16 | GLF3105 |
| GLF3105-273 | 2 | 273-276 | 10×ф18 | 16×ф16 | |
| GLF3105-305 | 2 | 305-308 | 10×ф18 | 20×ф16 | |
| GLF3125-311 | 2 | 311-314 | 10×ф18 | 20×ф16 | GLF3125 |
| GLF3125-355 | 2 | 355-358 | 10×ф18 | 24×ф16 | |
| GLF3125-381 | 2 | 381-384 | 10×ф18 | 26×ф16 |
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