The MILWAUKEE OPEN-LOK Multi-Tool Blade Variety Kit 9PC provides you with an assortment of blades for metal, multi-material, hardwood, and clean wood cutting applications. The set includes a Carbide Teeth metal blade that lasts up to 50X longer than standard bi-metal blades and can be used in a wide range of metal materials while maintaining longer blade life such as; screws, bolts, nails, and more. TITANIUM CHARGED Bi-Metal blades have an optimized titanium blend for maximum wear-resistance and up to 15x longer life vs. high carbon steel (HCS) blades. These bi-metal multi-tool blades are ideal for wood with nails, PVC, and drywall. The Triple-Ground Japanese Tooth hardwood blades deliver up to 2X faster cuts than the previous MILWAUKEE HCS blades and feature a PRO-CURVE cutting edge for greater control. The Japanese Tooth blades are ideal for fast, clean cuts in hardwood and can also be used in clean wood, PVC, and drywall. The set also includes high carbon steel (HCS) blades designed with aggressive, edge-ground teeth for fast wood cutting. These blades feature a reinforced Universal Fit OPEN-LOK anchor for better strength & control and allow for quick blade changes across 100+ multi-tools. Not compatible with Starlock tools. The set is organized in a hard case for storage. MILWAUKEE oscillating multi-tool blades are designed and made in the USA with global materials.