This 18V cordless jig saw is engineered for curve cuts, delivering strong and manageable power. The Bosch GST18V-50B 18V Brushless Barrel-Grip Jig Saw provides corded performance, with a cutting capability up to 4.9 In. in wood and 500 to 3,500 strokes per minute speed. It has four orbital-action settings for cut control and auto-stop to stop the stroke mechanism. The saw also has a large die-cast aluminum footplate with no-mar plastic overshoe, a dust blower and LED light for max cut-line visibility, and a tool-free T-shank blade-change system. Power cutting | The GST18V-50B provides enough power for plunge cuts in hard wood or aluminum. The motor delivers no-load cutting speeds ranging from 500 up to 3,500 no-load strokes per minute. The tool has the cutting capability up to 4.9 In. in wood. Tool-free T-shank blade change | With the Bosch tool-free T-shank blade-change system, the GST18V-50B jig saw delivers convenience, with fast and effortless blade installation and removal. The blade clamp provides superior grip of T-shank blades (but does not accept U-shank blades).