3/8" NPT, 10" x 3.6", 4-1/2" Dia, 12000 RPM, 90 PSIG, Round Abrasive, Right Angle, Disc Sander Disc Sander Item Sander Item Type Disc, Right Angle Belt/Disc/Pad Details Round Abrasive Belt/Disc/Pad Size 4-1/2 Inch Diameter Spindle Size 5/8 Inch -11 TPI...