The Black & Decker 450 watt jigsaw comes complete with a universal blade clamp that holds both U & T Shank Blades. With a integral dust blow feature that helps to keep the line of cut clear. Integral blade storage allows various blades to be kept with the product saving space for storage and saves time on jobs. The sightline channel makes viewing the line of cut much easier and with a small lightweight and compact industrial design. The lock-on switch helps increase your comfort during prolonged cutting periods.