Our Universal Fit OPEN-LOK Mushroom Sealant Scraper Blade 5 Pack is designed for Oscillating Multi-Tools. These MILWAUKEE multi-tool blades are made from solid stainless steel with a flexible mushroom shape for delicate sealant removal around glass. The THIN KERF and no ground edges help users working in tight spaces. The versatile blade shape allows for safer glass work, ideal for windows.