The Porter-Cable 9543 is a Factory Reconditioned Quik-Change Jig Saw Kit. The saw features a reliable and strong-holding quick-blade change system that eliminates the need for a hex wrench. The mechanism accepts only T-shank blades, but offers a reliable blade grip. The base bevel adjustment is also tool-free and involves popping out a built-in crank from behind the saw, giving a few twists to loosen and then giving a few more twists in the opposite direction once the bevel is set. The jig saw has a hefty 6 Amp motor with more than enough power for professional applications. It features a variable-speed trigger as well as a variable-speed dial. The 9543 jig saw kit also offers a dust blower to keep the line clean, along with orbital cutting action that features varying degrees of orbit, from full for soft wood to none for metal cutting.