DESC: Only Hilti saws provide all the power you need - when you need it most. Smart Power is a unique Hilti innovation incorporating a motor with variable power control and an intelligent sensing system. When cutting under heavy loads, the WSR 1250 PE will maintain optimum cutting speed for fastest cutting in every material by boosting power when required. Under lighter loads, Smart Power keeps the saw running at the same optimum cutting speed requiring less power. Available at The Home Depot.