3M Quick Release Adaptor: Polisher adaptor used to quickly connect and disconnect double sided buffing pads. Use with 3M™ Perfect-It™ brand compounding and polishing pads. Centers pads for more effective use. Makes it easy to change between compound and polishing pads. 5/8 inch threads. Features: Connecting and disconnecting buffing pads from the buffing tool Regular polishing jobs Polishing stone or marble Attachment Type: Directly to Polisher Max RPM: 3000 none Thread Size: 5/8"Brand new