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 13501 Dynastraight Finishing Tool, 1 HP, Rear Exhaust, 1,800 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 92847 3" Dia. x 2-1/4" W Standard Dynacushion Pneumatic Wheel
Dynabrade 93534 3" Mandrel for Sanding Stars, 3-48 Male Thread
Dynabrade 01437 Plug
Dynabrade 92115 1/2" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 56158 6" Dia. Non-Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade 78167 1-1/4" Dia. x 180 Grit S/C Non-Vacuum PSA DynaCut Disc 25/pack
Dynabrade 55404 Vanes, 4/Set, Vaned Pencil Grinder
Dynabrade 82566 3/4" W x 18" L 120 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 90040 5" Dia. Foam, Flat Face Polishing Pad
Dynabrade 92247 4" Dia. x 3/4" W Straight Fine Wire Wheel
Dynabrade 13505 Dynastraight Finishing Tool, 1 HP, Rear Exhaust, 3,400 RPM, 5/8"-11 Arbor
Dynabrade 56156 6" Dia. Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade 93252 8" Dia. x 1/2" Center Hole, 400 Grit, A/O, Arbor-Mount Sanding Star
Dynabrade 92102 3" W x 10-11/16" L 80 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 79149 1/2" W x 24" L 80 Grit Ceramic DynaCut Belts, 50/pack
Dynabrade 14230 Rubber Drive Wheel
Dynabrade 64000 SuperFinisher, 115 Volts (AC), 1 Phase, 60 Hz
Dynabrade 58447 8" Dia. Central Vac-Ready 2-Hand Gear-Driven Sander, Central Vacuum, .45 HP, 900 RPM, Hook-Face
Dynabrade 58418 6" Dia.Two-Hand Dynorbital Random Orbital Sander, Non-Vacuum
Dynabrade 93658 3" Dia. x 3/8" CH 40/50 Grit Gulleted/Slotted Diamond Cut-Off Wheel
Dynabrade 01185 Vane Set (4pk) 
