Product Description
Different rock formations and rock drills require different taper angles. When drilling with high impact hydraulic rock drills in medium-hard to hard and abrasive rock formations, a wide taper angle is normally used. Taper angles of 11 and 12-degrees are normally used on modern drill rigs. For low impact rock drills and softer rock formations, a narrow taper angle of seven degrees is used. A 7-degree angle can also be used if bit spinning is a problem when using 11 and 12-degree equipment. In addition, a 4, 46 degree angle is ideal for soft rock when you're using pneumatic or hydraulic drill rigs - to prevent bits from spinning or becoming detached.
Part number Taper Angle Shank Length Weight
Mm mm kg
BT220600-66° (7° 11° 12° ) Hex 22 x 108 600 2.2
BT220800-66° (7° 11° 12° ) Hex 22 x 108 800 2.8
BT221000-66° (7° 11° 12° ) Hex 22 x 108 1000 3.4
BT221200-66° (7° 11° 12° ) Hex 22 x 108 1200 4
BT221400-66° (7° 11° 12° ) Hex 22 x 108 1400 4.5
BT221600-66° (7° 11° 12° ) Hex 22 x 108 1600 5.1
BT221800-66° (7° 11° 12° ) Hex 22 x 108 1800 5.7
BT222000-66° (7° 11° 12° ) Hex 22 x 108 2000 6.5
BT222200-66° (7° 11° 12° ) Hex 22 x 108 2200 7.2
BT222400-66° (7° 11° 12° ) Hex 22 x 108 2400 7.8
BT222600-66° (7° 11° 12° ) Hex 22 x 108 2600 8.3
BT222800-66° (7° 11° 12° ) Hex 22 x 108 2800 8.9
BT223000-66° (7° 11° 12° ) Hex 22 x 108 3000 9.5
BT223600-66° (7° 11° 12° ) Hex 22 x 108 3600 11.2
BT224000-66° (7° 11° 12° ) Hex 22 x 108 4000 12.7
BT224800-66° (7° 11° 12° ) Hex 22 x 108 4800 15.2
BT225600-66° (7° 11° 12° ) Hex 22 x 108 5600 18.4
BT226400-66° (7° 11° 12° ) Hex 22 x 108 6400 20
BT227200-66° (7° 11° 12° ) Hex 22 x 108 7200 22
BT228000-66° (7° 11° 12° ) Hex 22 x 108 8000 24.5
22mm 7 / 8 " hex rod. 108mm 4 1 / 4 " shank. |
| 4°46' taper |
| Length (mm) | Part No. | Weight (kg) |
| 800 | 578-0108,11 | 2.9 |
| 1600 | 578-0116,11 | 5.4 |
| 2000 | 578-0120,11 | 6.6 |
| 2200 | 578-0122,11 | 7.1 |
| 2400 | 578-0124,11 | 7.8 |
| 3200 | 578-0132,11 | 10.2 |
| 3500 | 578-0135,11 | 11.1 |
| 4000 | 578-0140,11 | 12.7 |
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| 7° taper |
| Length (mm) | Part No. | Weight (kg) |
| 400 | 573-0104,11 | 1.7 |
| 800 | 573-0108,11 | 2.9 |
| 1830 | 573-0118,11 | 6 |
| 2000 | 573-0120,11 | 6.5 |
| 2435 | 573-0124,11 | 7.8 |
| 3050 | 573-0131,11 | 9.9 |
| 3200 | 573-0132,11 | 10.1 |
| 4000 | 573-0140,11 | 12.7 |
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| 11° taper |
| Length (mm) | Part No. | Weight (kg) |
| 610 | 579-0106,11 | 2.4 |
| 1220 | 579-0112,11 | 4.2 |
| 1525 | 579-0115,11 | 5 |
| 1830 | 579-0118,11 | 6.1 |
| 2000 | 579-0120,11 | 6.6 |
| 2435 | 579-0124,11 | 7.9 |
| 2600 | 579-0126,11 | 8.4 |
| 3200 | 579-0132,11 | 10.3 |
| 3655 | 579-0137,11 | 11.7 |
| 4000 | 579-0140,11 | 12.8 |
| 4800 | 579-0148,11 | 15.1 |
| 5600 | 579-0156,11 | 17.5 |
| 6400 | 579-0164,11 | 20 |
| 7200 | 579-0172,11 | 22.4 |
| 8000 | 579-0180,11 | 24.9 |
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| 12° taper |
| Length (mm) | Part No. | Weight (kg) |
| 1220 | 577-0106,11 | 2.3 |
| 1525 | 577-0112,11 | 4.2 |
| 1830 | 577-0115,11 | 5.1 |
| 2000 | 577-0118,11 | 6.1 |
| 2435 | 577-0120,11 | 6.6 |
| 3050 | 577-0124,11 | 7.9 |
| 3200 | 577-0131,11 | 9.8 |
| 3655 | 577-0132,11 | 10.2 |
| 3965 | 577-0137,11 | 11.7 |
| 4800 | 577-0140,11 | 12.8 |
| 5600 | 577-0148,11 | 15.2 |
| 6400 | 577-0156,11 | 18.4 |
| 7200 | 577-0164,11 | 20 |
| 8000 | 577-0172,11 | 22 |
| 577-0180,11 | 24.8 |