The BTS 630 and BTS 635 cut-off saws can be used for much longer and require less maintenance due to a unique three-stage filter system and robust design. A high-torque 4.3 kW engine delivers effective cutting results, while the vibration dampening system minimizes operator fatigue. The BTS 635s model features a soft-start option. Wacker Neuson. 800-770-0957.