The Makita 9218SB 7 in. Disc Sander has a powerful motor that operates at 4,000 RPM for smooth sanding. Lightweight for less fatigue. Ball and needle bearing construction for long life and smooth operation. Double insulated. Includes: 1 Ea. Abrasive disc #50; Rubber pad; Lock nut; Spanner wrench; Lock nut wench, side handle.