Equal-i-zer BTB WK6SET Auto Glass Pinchweld Prep Tool Kit This kit consists of three winged anti-scratch pinchweld blades 1/2", 3/4", and 1", along with a wide pinchweld preparation blade ( 1-9/16") for removing the urethane along the bottom of cars with wide urethane. Also included is a WK7 manual handle and a hex key for removing and replacing the blades. WK6SET