New Genuine Dremel 511E Ez lock compatible abrasive buffs The Dremel EZ Lock makes accessory changes easy as PULL - TWIST - RELEASE. The one-piece mandrel design simplifies the process of changing accessories. For use with the EZ402 EZ Lock Mandrel or Standard 402 Mandrel sold seperately Compatible with both EZ402 EZ Lock Mandrel and Standard 402 Mandrel Refinish furniture, clean grills, remove paint, tarnish and more First patented system of its kind Compatible with all Dremel rotary tools Includes 2 Buffs: 1 Coarse 180 Grit and 1 Medium 280 Grit