A Rugged, Versatile Sharpener Featuring Fine Craftsmanship and Unique Design | Engineered, Manufactured and Tested for Prying and Chiseling | Optimized Teeth Pattern for Fast, Consistent Cutting of Steel | Push Button to Easily Open and Close | Quickly Forms New Threads, Re-Forms Burred Threads, and Cleans Out Plaster Obstructions | Rotating Cap for Optimum and Precise Control