Description
Experience smooth, controlled surface refinement with the Astro Pneumatic ONYX 3″ Finishing Palm Sander – 3/32″ Stroke, a compact, high-precision tool engineered for professional body shops, automotive refinishers, and detailers. Designed for comfort and consistent performance, this lightweight palm sander delivers superior finishing quality on paint, primer, fillers, and clear coat surfaces.
Built by Astro Pneumatic Tool, the ONYX series is known for reliability and ergonomic craftsmanship. This 3″ finishing sander features a composite lever, housing, and rotor, providing a smooth feel during operation while reducing vibration and operator fatigue. The ergonomic grip offers excellent control, ensuring clean, even sanding with minimal effort.
With a 3/32″ (2.5mm) orbit, this tool is ideal for final finishing, blending, and refinement tasks. The built-in regulator allows positive speed control, while the new muffling system lowers sound levels for a quieter, more comfortable work environment. Maintenance is quick and simple thanks to the easily replaceable drop-in motor.
Specifications:
• Pad Size: 3″ (76mm), Hook & Loop
• Free Speed: 13,000 RPM
• Motor Power: 0.25 HP
• Spindle Thread: 5/16″-24
• Overall Length: 4-3/4″
• Air Consumption: 470 L/min
• Sound: 85 dBA
At Affordable Deals, enjoy Price Assurance and Effortless Returns with every purchase.
Choose precision finishing and ergonomic comfort — choose the Astro Pneumatic ONYX 3″ Finishing Palm Sander, a standout in our Automotive Tools and Supplies collection.






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