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 13207 Dynastraight Finishing Tool, .7 HP, Rear Exhaust, 4,500 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
3M 53698, Scotch High Tack Box Sealing Tape 373+, Clear, 72 mm x 100 m, 24 Rolls/Case, 7100266181
Dynabrade 78709 3/8" x 3/4"-B52 Dynacut A/O Mounted Point, Vitrified, 5/pack
Dynabrade 02649 Bearing
Dynabrade 78165 1-1/4" Dia. x 80 Grit S/C Non-Vacuum PSA DynaCut Disc 25/pack
Dynabrade 51704 .1 hp Straight-Line Pencil Grinder, 50,000 RPM, 3mm Collet
Dynabrade 97573 - 1/4" Safety Female Coupler w/Female Plug
3M 11156, Scotchrap Vinyl Corrosion Protection Tape 50, 2 in x 100 ft,Unprinted, Black, 10 rolls/Case, 7000057502
Dynabrade 95676 1/4" Female Coupler with 1/4" Male Plug Assembly
Dynabrade 53680 Rotor
Dynabrade 57737 Overskirt Shroud for Orbital Sander
Dynabrade 78645 1/2" Dia. x 1-1/2" W x 1/8" Center Hole, Z/A, 60 Grit, 100/pack
Dynabrade 45206 Housing for Model 55126
Dynabrade 79109 1/2" W x 12" L 80 Grit DynaCut Premium Ceramic Belts, 50/pack
Dynabrade 40758 Spanner Wrench
Dynabrade 78008 1/2" W x 12" L Very Fine Non-Woven DynaBrite Belts, 10/pack
Dynabrade 79149 1/2" W x 24" L 80 Grit Ceramic DynaCut Belts, 50/pack 
