Power: 350W No-Load Speed (r/min): 30000 Max. Milling Cutter Diameter (mm): 6.35 Light body Designed to quickly and cleanly cut, trim, chamber, and profile hard & soft wood, chipboard and similar materials Shank Diameter: 1/4" This cutter set contains a range of the most widely used cutters for decorative woodworking Usage: The product is drilled using a professional electric drill, bench drill. Rpm 800-1000 or as close to as possible while also adding water for cooling the holes during operation is an advantage Supplied in handy wooden storage case Suitable for wood, MDF board, hardwood and softwood