A gasket scraper is a simple yet essential tool used to remove old, hardened gasket material from engine or transmission surfaces before installing new seals. Made with a sharp, durable blade and ergonomic handle, it allows for precise, controlled scraping without damaging metal surfaces. Proper surface preparation ensures a tight, leak-free seal when reassembling components like valve covers, oil pans, or timing covers. Always use the scraper carefully and follow up with a solvent and clean cloth to remove residue. A good gasket scraper extends the life of seals and improves overall repair quality. It’s a must-have for any mechanic performing routine engine maintenance or rebuilds.