15X LIFE BI-METAL MATERIAL: Dremel bi-metal blades in wood with nails provide up to 15X life vs. standard bi-metal oscillating blades in wood with nails IDEAL FOR: Cutting soft/hard wood, wood with nails, drywall, PVC, thin metal, metal, copper pipe and conduit. Also recommended use on cutting doorjambs and baseboards for flooring installation. UNIVERSAL COMPATIBLE SYSTEM: Dremel Universal Quick-Fit interface allows for our blades to fit nearly every oscillating tool on the market including Dremel, Bosch, Makita, Rockwell and Milwaukee USA-BASED CUSTOMER SERVICE – Available by chat, email, phone or visit us at our service center in Racine, WI Select Multi-Max accessories are evaluated by an independent, third-party laboratory to undergo tests of endurance and speed against the oscillating accessories offered by our competitors