The Lisle Corporation 4-pc Pinch Weld Scraper Set, No. 83500, is designed for easy and safe removal of residual urethane adhesive on vehicle after glass has been removed. Its winged blades help prevent damage and scratches to the pinch weld. The scrapers also helps leave the correct thickness of adhesive for re-bonding. The set includes 1-1/2" straight, 1/2", 3/4", and 1" winged blades.