Fast and Flexible
A closed coat and a grinding aid make our 3M Cubitron II Abrasive Belt 947A an outstanding option for low to medium pressure applications on heat sensitive metals. The nature of the abrasive structure diverts heat to the swarf, keeping both belt and workpiece cooler. It is now available in grades 40+ (make to order), 60+, 80+ and now 120+ adding an improved solution for finer finishing applications.
Cutting Edge Performance for Low and Medium Pressure Sanding
A semi flexible Cubitron II belt the 3M 947A sports an X-weight poly-cotton backing. Among backing weights, an X-weight cloth is flexible and provides tensile strength as well.
A great number of small belt sizes which are nimble and maneuverable so operators can get in, over and around intricate parts. These belts are good options for low-and-medium-pressure offhand operations for use on the following equipment:
- Backstands
- File Belt Sanders
- Inline Sanders
- Stroke Sanders
How 3M Precision-Shaped Grain Works
3M Precision-Shaped Grain is designed to continuously fracture to form sharp points and edges that easily ?slice? through metal. It cuts faster, lasts longer and stays cooler.
Conventional ceramic abrasive grain tends to ?plow? through the metal, causing heat to build up in the workpiece and the abrasive ? resulting in a slower cut, shorter belt life and undesirable effects, such as burnishing.
3M Science. The Beginning of Cubitron II.
In 2009, 3M scientists had long believed abrasives would work better if each grain of the ceramic abrasive material was exactly the same size and shape. It would act more like a knife shaving off material and less like a plow bouncing along the surface, creating heat damage. The breakthrough came when they realized they could use microreplication technology 3M was already using to create reflective material for signs, and other purposes.
Within a short time, they had created 3M’s Precision Shaped Grain ? identical triangular-shaped abrasive grains electrostatically oriented and distributed uniformly on an abrasive backing. The end result is faster, cooler cutting action, improved productivity, less operator fatigue and longer belt life.

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Air Turbine Tools 310RDM - 6mm Router Hand Tool Series with Brake, 25,000RPM, 33427
Air Turbine Tools 2590SVR - 6mm Angle Hand Tool Series (Long Version, Rear Exhaust), 30,000RPM, 35831
Air Turbine Tools 2545DM - 1/4" Angle Hand Tool Series (Long Version, Front Exhaust), 30,000RPM, 35534
Air Turbine Tools 310RXDM - 1/4" Router Hand Tool Series, 30,000RPM, 43432
Air Turbine Tools 310RXSV - 6mm Router Hand Tool Series with Brake, 40,000RPM, 43445
Air Turbine Tools 201SV - 1/8" Straight Hand Tool Series with Brake, 40,000 RPM, 32144
Air Turbine Tools 2545SVF - 1/4" Angle Hand Tool Series (Long Version, Front Exhaust), 30,000RPM, 35532
Air Turbine Tools 310RSV - 1/4" Router Hand Tool Series, 25,000RPM, 33420
Air Turbine Tools 2545SSVF - 6mm Angle Hand Tool Series (Short Version, Front Exhaust), 40,000 RPM, 35549
Air Turbine Tools 2590DM - 1/4" Angle Hand Tool Series (Long Version, Front Exhaust), 30,000RPM, 35834 
