A pinchweld preparation tool This tool helps you leave a precise 2 mm (1/16") layer of urethane on the pinchweld, as recommended by manufacturers. You can control the cutting height of the urethane using the heel of the blade. The SuperScraper features a lightweight aluminum shaft with a quick-change collet, allowing for fast blade changes. It also has a sturdy flip-top plastic handle that stores extra 1/2" blades (wider blades do not fit) and is 10 inches long. The kit includes: (1) Flip-top handle SuperScraper (with five 1/2" wide blades stored in the handle) (5) 1/2" wide blades (SC301) (10) 5/8" wide blades (NT467) (10) 3/4" wide blades (MZT468)