齿轮工艺：先进的齿轮设计技术和超高强度合金钢使得工具更轻，更耐用，更快
| (Kg) | (rpm) | |||
| BETW-05 | 100 | 500 | 4.3 | 26 |
| BETW-10 | 130 | 1000 | 4.8 | 18 |
| BETW-15 | 180 | 1500 | 5.2 | 8 |
| BETW-20 | 250 | 2000 | 5.5 | 6 |
| BETW-30 | 480 | 3000 | 7.5 | 3.5 |
| BETW-40 | 650 | 4000 | 9.5 | 3 |
| BETW-50 | 850 | 5000 | 10 | 2.5 |
| BETW-60 | 1100 | 6000 | 12 | 1.8 |
| BETW-80 | 1900 | 8000 | 14 | 1.5 |