The Onyx 3" Geared Palm Polisher Kit, No. 331, from Astro Pneumatic Tool Co., was designed to provide high power, durability and reduced vibration. Its insulating thermo rubber protects against cold and helps to ensure a good grip. The one-hand orbital sander has an ergonomic design, and the the polisher kit includes a built-in regulator for any speed. The 331 also includes a planetary-gear system with needle bearings for power and long-term working, as well as rear exhaust with a silencer for quiet and clear operation.
