The MILWAUKEE® UNIVERSAL FIT OPEN-LOK™ 1-3/8 HCS Japanese Tooth PRO-CURVE™ Hardwood Blade 10 Pack for Oscillating Multi-Tools is made from premium high carbon steel. This hardwood multi-tool blade has precision triple ground Japanese teeth and now includes PRO-CURVE™ for greater control and accuracy. This is Milwaukee's best multi-tool blade for making precise cuts with a smooth finish in hardwood and can also be used in other woods, PVC, drywall, and other soft materials. This Milwaukee blade delivers up to 2X faster cuts than the previous generation of high carbon steel blades with a deeper plunge cut and a wider 1-3/8 cutting width. This multi-tool blade is designed and made in the USA with global materials.