Up to 50% More Life - 1.5" Wheel Diameter Greater Durability</br>Fiber Reinforced Wheel Faster Cutting</br>Rated to 40??000 Max RPM</br></br>Product Description</br></br>The new Milwaukee?? cut-off wheels are for use with the M12TM Rotary tool and other competitive rotary tools that are rated up to a MAX 40??000 RPMs. The wheels feature a 1.5"eel diameter for Up to 50% More Life and a fiber reinforcement for Greater Durability.</br><br/>http://www.amazon.com/gp/product/B007FULES00od