Radial Bristle Disc Mandrel, Shank Dia. 1/4 in, Pilot Dia. 3/32 in, Pilot Length 1 3/4 in, Fits Hole 1/16 in, For Use With Small radial bristle discs 1 in diameter or smaller with 1/16 in center hole. Fits 3/32 in drill or collet chucks, Max. RPM 30, 000 RPM, Package Quantity 5. This item has been restricted from sale in the following state (s): []