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3M™ Die Grinders

3M™ Die Grinder Tool No. 20239, 12K RPM, Large
3M™ Die Grinder Tool No. 20239, 12K RPM, Large
3M™ Die Grinders are straight-shaft tools ideal for heavyweight applications such as stock removal and weld leveling, and are designed for continuous use with features that enhance operator comfort and control. The precision-balanced steel motor reduces vibration and weight, while 3M™ Gripping Material on the body reduces vibration and enables a firm grip.
  • Straight shaft die grinder designed to be used with various 3M products such as 3M™ Cartridge Rolls and 3M™ Even Run Bands
  • Air-powered motor handles heavyweight applications such as stock removal
  • Precision-balanced steel motor reduces vibration for greater efficiency and operator comfort
  • 3M™ Gripping Material on the body reduces vibration and enables operator to maintain a secure grip with less effort
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Products and Purchase Options: 

10 Results (Displaying results 1-10)
3M IDUPCMarketplace Formal NameLength
60440179467000511412023893M™ Die Grinder 20238, 1 hp 1/4 in Collet 18,000 RPM, 1 per case7.75 Inch   
60440179459000511412023723M™ Die Grinder 20237, 1 hp 1/4 in Collet 20,000 RPM, 1 per case7.75 Inch   
60440179483000511412024023M™ Die Grinder 20240, 1 hp 1/4 in Collet 8,000 RPM, 1 per case10 Inch   
60440179475000511412023963M™ Die Grinder 20239, 1 hp 1/4 in Collet 12,000 RPM, 1 per case10 Inch   
60440239527000511412863033M™ Die Grinder 28630, .3 hp 25,000 RPM 3 in Extended Length9.75 Inch   
60440241028000511412877063M™ Die Grinder 28770, 1 hp 1/4 in Collet 18,000 RPM 3 in Extended Length, 1 per case13 Inch   
60440239493000511412862733M™ Die Grinder, 28627, .3 hp 18,000 RPM, 1 per case7.25 Inch   
60440239519000511412862973M™ Die Grinder, 28629, .3 hp 25,000 RPM, 1 per case6 Inch   
60440236341000511412833263M™ Die Grinder 28332, .5 hp 1/4 in Collet 4,000 RPM, 1 per case8.88 Inch   
60440239501000511412862803M™ Die Grinder, 28628, .3 hp 18,000 RPM, 3 in Extended Length, 1 per case10.5 Inch   
10 Results (Displaying results 1-10)


Our 3M™ Die Grinder features an adjustable directional exhaust that allows airflow to be directed in any direction preferred, even toward the operator for cooling if desired. To prevent accidental starting, the die grinder incorporates a safety lever.

A die grinder is a handheld power tool that runs spindle-mounted abrasives such as coated abrasives or nonwoven surface conditioning abrasives. Typical coated abrasive products that you can run on a die grinder include cartridge rolls for reaching tight corners and crevices, cross pads for sanding small internal diameters, and evenrun bands and flap wheels for sanding and polishing contours. Scotch-Brite™ surface conditioning products typically used include radial bristle discs, combination wheels, and cross buffs for removing rust and debris from internal diameters of small cylinders. These are just a few of a multitude of products that can be run on a die grinder.


 Air Inlet Thread‎‎ 1/4 in NPT
 Application Category‎‎ Finishing/Polishing,‎ Blending/Deburring,‎ Grinding/Metal Stock Removal,‎ Cleaning
 Applications‎‎ Grinding,‎ Deburring Internal Diameters,‎ Blending Corners,‎ Polishing Internal Diameters,‎ Straight Shaft Grinding,‎ Straightline - Brushed Finish,‎ Radiusing,‎ Contour Finishing,‎ Parting Line Removal,‎ Cleaning Internal Diameters,‎ Light Grinding,‎ Flat Areas
 Brand‎‎ 3M™
 Collet Size‎‎ 1/4 in
 Converted Form‎‎ Power Tool
 Equipment Type‎‎ Die Grinder
 Height‎‎ 3 Inch
 Height (Metric)‎‎ 73 mm
 Industries‎‎ Metalworking,‎ Transportation & Heavy Equipment,‎ General Industrial,‎ MRO,‎ Aerospace,‎ AOEM,‎ Woodworking,‎ Composite
 Length‎‎ 13 Inch,‎ 10.5 Inch,‎ 10 Inch,‎ 6 Inch,‎ 9.75 Inch,‎ 7.25 Inch,‎ 8.88 Inch,‎ 7.75 Inch
 Length (Metric)‎‎ 200 mm,‎ 196.9 mm,‎ 184 mm,‎ 254 mm,‎ 247 mm,‎ 318 mm,‎ 266 mm,‎ 152 mm
 Max RPM‎‎ 8000,‎ 12000,‎ 25000,‎ 20000,‎ 4000,‎ 18000
 Motor HP (W)‎‎ .5 (372),‎ 1 (744),‎ .3 (224)
 Power Type‎‎ Pneumatic
 Primary Application‎‎ Metalworking
 Product Form‎‎ Power Tool
 Sub Industries‎‎ Primary Wood and Panel Processing,‎ Custom Woodworking and Millwork,‎ Cabinetry,‎ Furniture,‎ Metal Fabrication
 Weight Pound (kg)‎‎ 2.06 (.93),‎ 1.15 (.522),‎ 1.69 (.77),‎ 1.58 (.717),‎ 1.52 (.690),‎ 0.89 (.405),‎ 1.40 (.639)