This 30-piece multi tool blade kit provides a versatile oscillating tool head assortment for remodeling, flooring, cabinetry, repair, and demolition projects. The set includes 8 specialized blade types in multiple widths and profiles, providing dependable multi tool blades, multitool blades, oscillating saw blades, and oscillating tool blades for controlled plunge and flush cutting.Built for demanding applications, the blades feature heat-treated High Carbon Steel (HCS) and Bi-Metal construction to help improve toughness, edge retention, wear resistance, and service life. Use these oscillation tool blades to cut wood, plastic, drywall, aluminum, copper, sheet metal, and nail-embedded wood during trim work, repairs, installation, and demolition.For improved cutting precision, each oscillating blade features clearly laser-etched inch and millimeter depth markings for accurate and repeatable depth control, especially in tight spaces. Multiple widths and profiles make the vibrating saw blades suitable for a variety of detailed and general-purpose cutting tasks.The universal open-back mounting design allows quick accessory changes and is designed to fit many major oscillating multi-tools, including compatible DEWALT and FEIN models. Users looking for replacement DEWALT oscillating tool blades or blades for a FEIN oscillating tool should verify the mounting interface before purchase. These blades are not compatible with Starlock systems.