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 91574 6" Dynacut Extreme Orange Premium Film Disc, 120 Grit, Hook & Loop, Non-Vacuum, 50/Box
Dynabrade 52836 1/4" Drill, .4 HP, Rear Exhaust, 20,000 RPM
Dynabrade 64904 Fixed Speed Versatility Grinder, 1.5 hp, 150 V (AC), 1 Phase, 50/60 Hz, 5,400 SFPM, for 1/4"-2" W x 72" L (6-51 mm x 122 cm) Belts
Dynabrade 60216 - 20,000 lb. Jack with 3/4" Vi-Sorb Pad
Dynabrade 91564 6" Dynacut Extreme Orange Premium Film Disc, 100 Grit, Hook & Loop, Vacuum Holes, 50/Box
Dynabrade 31640 Rubber Drive Wheel
Dynabrade 18443 Key
Dynabrade 11300 Contact Arm Ass'y, 1/4" Dia. x 3/8" W, Steel Wheel, Polish Turbine Blades
Dynabrade 50610 6" Dia. Vacuum Disc Pad, Hook-Face, Long Nap
Dynabrade 55406 Overhose, Vaned PG
Dynabrade 56195 5" Dia. Non-Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade X62HS 6" Dia. Non-Vacuum Dynorbital Extreme Random Orbital Sander, Hook Pad W/ Speed Regulator
Dynabrade 57369 Lip Seal Shroud
Dynabrade 56182 6" Dia. Non-Vacuum Disc Pad, Hook-Face Short Nap
Dynabrade 58500 3" W x 4-1/4" L Dynabug II Orbital Sander, Non-Vacuum, .15 HP, 10,000 RPM, 3/32" Orbit
Dynabrade 93166 4" Dia. X 1/4" Dia. Shank, 80 Grit, A/O, Spindle-Mount Sanding Star
Dynabrade 50947 - 8" (203 mm) Dia. Non-Vacuum Wet/Dry Sander Disc Pad, Hook-Face, Short Nap
3M 28713 ROLOC DISC PAD TR, HARD 4 IN 5/8-11 INTERNAL, 7010298961
Dynabrade 92938 5" Dia. x 3-1/2" W Standard Dynacushion Pneumatic Wheel
Dynabrade 11129 3/4" W x 7" L Thin Platen Pad 5-Pkg.
Dynabrade 45206 Housing for Model 55126
Dynabrade 78709 3/8" x 3/4"-B52 Dynacut A/O Mounted Point, Vitrified, 5/pack
Dynabrade 95800 [1-1/4" Thread - 1-1/4" Non-Thread], Non-Conductive Vacuum Hose Cuff (Includes 95895 Insert)
Dynabrade 58502 3" W x 4-1/4" L Dynabug II Orbital Sander, Central Vacuum, .15 HP, 10,000 RPM, 3/32" Orbit
Dynabrade 58512 2-3/4" W x 7-3/4" L Dynabug II Orbital Sander, Central-Vacuum, .15 hp, 10,000 RPM, 3/32" Orbit
Standard Abrasives 708744, Aluminum Oxide Handy Roll, P100 J-weight, 2 in x 50 yd, 7010310611
Dynabrade 52863 .4 hp Straight-Line Pencil Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet 
