Check the listing for details. 2PCS 3inch Roll Lock Rotary Sanding Disc Pad Holder 1/4" Shank for Die Grinder. Color: Black, Condition: New. Listed at 12.82 USD. Feature 3" diameter disc holder for the polishing wheel can be used with any drill or mandrel rotary tool. Heavy duty rubber mat, aluminum core, nickel plated detachable steel handle. Heavy-duty construction will ensure durability for a wide range of applications. The back of the threaded pad is screwed onto the mandrel for quick and easy replacement. With 1/4" shank, is suitable for electric drills, mold grinders, pneumatic grinders, for any surface buffing/polishing work. Turn your mandrel or other rotating power tool into a high speed polisher. Accepts sanding, polishing, surface conditioning/preparation, bristles and other disc consumables. Specification Shank Diameter: 1/4 in, 6.35mm Pad Material: Heavy Duty Reinforced Rubber Shank Material: Aluminum Core, Nickel-Plated, Steel Shank ( Removable ) Max RPM: 20,000 (3 in) For: Type R Twist Roll Lock Sanding Discs and Pads Fits: Air Angle Die Grinder, Air Straight Die Grinder, Power Drills, Rotary Tools, and Other Power Tools Package include 2 X 3 inch Sanding Disc Holder W/ 1/4" Shank