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 52101 .5 hp Straight-Line Die Grinder, Rear Exhaust, 3,400 RPM, 1/4" Collet
Dynabrade 40321 Dynafile II Abrasive Belt Tool Versatility Kit
Insize 8910-5KGF1, WEIGHT SETS_1mg~5kg, 6940561907629
Dynabrade 61470 Raptor Vac Pneumatic Vacuum - Wall-Mount Style, 1.5 Gallon
Dynabrade 78622 3/4" Dia. x 2" W x 1/4" Center Hole, 80 Grit, 100/pack
Dynabrade 96225 Swivel Fitting
Dynabrade 58436 6" Dia. DynaLocke Dual-Action Sander, Self-Generated Vacuum
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Dynabrade 96353 Punch Set (8 Pc)
Dynabrade 98270 1/2" Male Coupler
Dynabrade 43515 .4 hp 6" (152 mm) Extension Die Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade 50284 9" Dia. Disc Backup Pad, Spiral-Face, Medium Density, 5/8"-11 Thread
Dynabrade 93095 3" Dia. x 80 Grit Premium Ceramic Non-Vacuum DynaCut, Locking-Type Disc, 3 Ply Cloth, 25/pack
Dynabrade 50273 Locking Flange Nut, 5/8"-11 Thread
Dynabrade 78694 D22 Cartridge Roll Mandrel 1/4" Pilot Dia. x 1-1/2" Pilot Length, 1/4" Dia. Shank x 1-1/4" Shank Length
Dynabrade 52667 1 hp Straight-Line Die Grinder, Rear Exhaust, 15,000 RPM, 1/4" Collet
Dynabrade 56316 3" x 4-1/4" Vacuum Dynabug II Disc Pad, Hook-Face, Short Nap
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Dynabrade 51753 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 50,000 RPM, 1/8" Collet
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 52596 5" Dia. Right Angle Disc Sander, Central Vacuum, 1.3 HP, 12,000 RPM, 5/8"-11 Spindle Thread
Dynabrade 56103 6" Dia. Non-Vacuum Disc Pad, Vinyl-Face
Dynabrade 01886 Drop-In Motor
Dynabrade 61420 Raptor Vac Electric Portable Vacuum System
Dynabrade 93548 3" Mandrel for Sanding Stars, 8-32 Male Thread
3M 11149, Scotchrap Vinyl Corrosion Protection Tape 50, 1 in x 100 ft,Unprinted, Black, 1 roll/carton, 10 rolls/Case, 7000057501
Dynabrade 55054 Governor Valve 
