Diameter | Button (NO. × Diameter,mm) | Flushing holes | Weight (kg) | Bit Shank | ||
mm | inch | Gauge | Front | |||
203 | 8 | 10×18 | 14×16 | 2 | 46.2 | DHD380/QL80/M80/SD8 |
216 | 8 1/2 | 10×18 | 6×16+8×18 | 2 | 50.4 | |
225 | 8 7/8 | 10×18 | 7×16+8×18 | 2 | 52.8 | |
229 | 9 | 10×18 | 7×16+8×18 | 2 | 53.4 | |
235 | 9 1/4 | 12×18 | 6×16+8×18 | 2 | 55 | |
240 | 9 1/2 | 12×18 | 6×16+8×18 | 2 | 56 | |
254 | 10 | 12×18 | 9×16+12×18 | 2 | 58 | |
280 | 11 | 12×18 | 21×16+9×18 | 3 | 64 | |
305 | 12 | 15×18 | 9×16+27×18 | 3 | 70 |