Check the listing for details. 22pcs Quick Change Disc Set 2" Roll Lock Sanding Disc 36 Grits with Disc Holder. Condition: New. Listed at 18.48 USD. 1. 1/4" Lock sanding disc is made of metal handle with resin tray body; aluminum oxide sanding disc material, good durability, high wear resistance, fast grinding force.2. The evenly distributed particles of the grinding disc can maintain long-term grinding performance. It can be used on surfaces such as stainless steel, alloy, iron, non-ferrous metal materials.3. 1/4" handle allows operators to quickly connect the assembly to common grinding tools, such as drills and air tools. With a simple turn, the grinding disc can be securely locked on the arbor.4. The disc pad holder set works together and helps you improve efficiency. Suitable for most electric drills, die grinders, air grinders and other power tools. Meet your grinding and polishing needs, perfect for woodworking, carving, construction, hand-made and sanding vehicles.