The MILWAUKEE OPEN-LOK 1-3/8 HCS Japanese Tooth PRO-CURVE Hardwood Oscillating Multi-Tool Blades are made from premium high carbon steel and feature precision triple-ground Japanese teeth for up to 2X faster cuts than the previous generation of high carbon steel blades. The Japanese Tooth hardwood blades have a PRO-CURVE cutting edge for greater control and accuracy while cutting. The combination of Japanese Teeth and PRO-CURVE cutting edge make this blade the optimal solution for precise cuts with a smooth finish in hardwood, wood, PVC, drywall, and other soft materials. 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. MILWAUKEE oscillating multi-tool blades are designed and made in the USA with global materials.