1-piece durable, die-cast metal body for prolonged life, allowing for extra high tension (330 lb./150 kg). Quick and easy blade change with pretensioning. Comes with a bimetal blade, 24TPI. Power load sliding tension, gives extra leverage to help increase tension, and better control when releasing the blade. Thumb-dial adjustable tension mechanism with quick change features allows for tension memory - no resetting after each blade change. Ergonomically designed countoured handle and front thumb-grip to give better control. 4-3/4" cutting capacity.