| BK-ER6 | BK-JS6009 | BK-ER3612BR |
| Power: 500w | Power: 750w | Power: 1650w |
| No-load speed: 30000r/min | No-load speed: 0-3000r/min | No-load speed: 23000r/min |
| Capacity: 6mm (1/4") | Cutting cap: 65mm | Drill chuck: 12mm |
| Rated voltage: 110-240V | Rated voltage: 110-240V | Rated voltage: 110-240V |
| Rated frequency: 50/60hz | Rated frequency: 50/60hz | Rated frequency: 50/60hz |