The new 15 AMP Heavy Duty Reciprocating Saw delivers rugged, dependable performance unlike any reciprocating saw you've used before. Patented BUZZKILL Technology stops vibration dead in its tracks. The full-frame, linear counterbalance stops vibration at the source, instead of moving it around and shifting it to the user, as other saws do. The 15 Amp motor powers through the most demanding work, while Constant Response Electronics sense the load and immediately increase the power when you need it. That means comfortable, controlled cuts that don't wear on you or your tool. The 15 Amp Heavy Duty Reciprocating Saw joins the performance legend that is SKIL.