Single action blade tensioning device is easy to use, retains tension memory and can be adjusted to apply varying pressure to the blade Unique, quick-release lever allows for fast blade changes in less than 15 seconds Rigid metal internal I-beam construction adds stability and strength Molded bi-material, impact-resistant composite frame absorbs more shock Large cutting capacity for up to 5 inches of extra deep cutting Ergonomically designed contoured handle and front thumb grip to give better control Heavy duty steel reinforced core increases cutting speed 45° and 90° cutting angles for added flexibility of cutting needs