Milwaukee OPEN-LOK™ 1-3/8" Bi-Metal Oscillating Blades, 10-Pack are crafted from premium high-speed steel, designed specifically for use with Oscillating Multi-Tools. Their innovative cut-away body shape allows for faster plunge cuts, while the raised Open-Lok™ Anchor ensures quicker blade changes and enables flush cuts with ease. These versatile bi-metal blades excel at making precise detail cuts in materials such as wood, nails, PVC, and drywall. Enhanced with a durable titanium coating, they up to 15 times longer life d to standard high carbon steel blades. Additionally, the blades feature a protective black oxide coating and are laser etched for easy identification, making them a reliable choice for both professionals and DIY enthusiasts. Model Number: 49-25-1239