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.

Dynabrade 01903 Drop-In Motor
Dynabrade X52H 5" (127 mm) Dia. Non-Vacuum Dynorbital Extreme Random Orbital Sander, .3 HP, 12,000 RPM, 3/32" Orbit, Hook-Face
Dynabrade 80053 Vacuum Speed Control Ass'y, 110V
Dynabrade 56197 6" Dia. Non-Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade 13512 Dynastraight 6" (152 mm) Extension Finishing Tool, 1 HP, Rear Exhaust, 3,400 RPM, 1/2" (13 mm) Dia. Arbor
Dynabrade 91629 1-1/2" W x 24" L 320 Grit A/O DynaCut Belt, 10/pack
Dynabrade 01185 Vane Set (4pk)
Dynabrade 90410 1/8" W x 24" L 180 Grit A/O DynaCut Belt, 50/pack
Dynabrade 82554 1/4" W x 18" L 60 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 31968 Conductive Y Adapter
Dynabrade 11682 Dynabelter Contact Arm Assembly, 4 Inch Dia x 1/2 Inch, 70 Durometer, Wheel Radiused
Dynabrade 50288 4-1/2" Dia. Disc Backup Pad, Hard Density, 5/8"-11 Thread
Dynabrade 92233 1/8" W x 18" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 78571 1-1/2" Dia. x 8-32 Female Center Thread, 60 Grit, A/O, 3-Ply, J-DynaCut Eyelet Star, 50/pack
Dynabrade 59183 6" Dia. Dynorbital-Spirit Random Orbital Sander, Central Vacuum, 3/32" Orbit
Dynabrade 95541 Grease Gun
Dynabrade 91425 1/4" W x 12" L 60 Grit A/O DynaCut Belt, 50/pack
Dynabrade 40750 Carbon Brush Set
Dynabrade 94999 Removal Tool
Dynabrade 14360 Pneumatic Pipe Belt Finisher
Dynabrade 78116 3/4" W x 34" L Medium NWN DynaBrite Belt, 10/pack
Dynabrade 40534 Brush
Dynabrade 51124 Collet, M8 x 1.0 Female Thread, 1/4" Capacity
Dynabrade 94990 1/4" Female Composite-Style Coupler with 1/4" Male Plug Assembly 
