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3M 20331 Random Orbital Sander, 3 x 4-inch, Non-vacuum

Selling Unit: Each

Sku: 20331-TO

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  • Non-vacuum orbital sander
  • Compact and lightweight
  • Grip-from-the-top design helps lessen operator fatigue
  • Precision-balanced


  • Ideal for flat surface finishing and sealer sanding
  • Compact, lightweight with a grip-from- the-top design for less fatigue
  • Precision-balanced and designed for smooth operation
  • Pneumatic power provides hours of continuous use, far exceeding standard electric sanders (air hose and air compressor sold separately)
  • Non Vacuum model

3M™ Orbital Sanders are designed to maximize finishing performance on flat surfaces. Its 3 x 4- inch work face easily gets into corners and angles to deliver an exceptionally smooth, flat, professional surface on metal, wood, composites and advanced materials. Air-powered 3M™ Orbital Sanders are available in three vacuum styles, with accessories.

Designed to Deliver Outstanding Finish 

Our 3 x 4-inch 3M™ Orbital Sanders feature a .24 (179) horsepower motor with a 1/8 inch (3.0 mm) diameter circular sanding action ideal for flat surface finishing and sealer sanding. These pneumatic — air-powered — sanders run on power generated by an air compressor for hours of continuous use. 

Make fast work of sanding and surface preparation on wood, metal, fiberglass and composite materials. This sander delivers a scratch-, gouge- and swirl-free finish ready for paint or varnish. 

Lightweight, compact, ergonomically designed for operator comfort, it's robust enough to use hour after hour in an industrial environment. 

Hookit Attachment System for Optimal Performance 

3M™ Hookit™ back-up pads are perfectly mated for use with hook-and-loop style 3M™ Hookit™ sheets. They're ideal for work spaces where adhesive backed discs may become contaminated by dust, dirt, or flying debris. The 3M™ Hookit™ attachment system allows you to easily attach, detach and reattach the abrasive, thus utilizing the entire life of the sheet, resulting in less shop waste. 


Additional Information - 3M 20331 Random Orbital Sander, 3 x 4-inch, Non-vacuum

Quick Order Category Tools/Accessories
Model 20331
Brand 3M
Tool Weight (lb) 3.4
Tool Airflow 17 SCFM
Selling Unit Each
Application Aerospace, Automotive, Cabinetry, Composite & Advanced Materials, Finish and Repair, Furniture, Marine, Metalworking, Millwork, Orbital Sanding, Paint Prep, Primary Wood & Panel Processing, Woodworking

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