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 51624 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 35,000 RPM, 3mm Collet
Dynabrade 56176 5" Dia. Vacuum Disc Pad, Vinyl-Face
Dynabrade 96335 Hex Nut
Dynabrade 76004 Push Button Coupler and Plug
Dynabrade 64659 Replacement Air Filter
Dynabrade 47200 .4 hp Straight-Line Die Grinder, Rear Exhaust, 950 RPM, 1/4" Collet
Dynabrade 78634 3/8" Dia. x 1" W x 1/8" Center Hole, Z/A, 80 Grit, 100/pack
Dynabrade 61430 Raptor Vac Electric Portable Vacuum System, 10 Gallon, 120 V
Dynabrade 33656 ND6700, Cover
Dynabrade 01543 Air Control Ring
Dynabrade 69362 Vacuum Shroud, 5" Orbital
Dynabrade 52410 3" Dia. 7 Degree Offset Disc Sander, Front Exhaust, .7 HP, 15,000 RPM, 3/8"-24 Thread
Dynabrade 91751 DynaMesh 11" 150 Grit Hook & Loop Discs, 25 per box
Dynabrade 96032 Open-End Wrench, 11/16"
Dynabrade 54333 - 8" (203 mm) Dia. Vacuum Gear-Driven Disc Pad, Hook-Face, Long Nap
Dynabrade 93345 Carbide Burr, 1/8" Dia., SG-44 D/C Burr, Tree-Radiused End, 1/2" Flute L, 1/8" Shank
Dynabrade 66402 Air Tool Post Grinder for 1-1/2" W x 24" L (38 mm x 610 mm) Belts, 1.86 hp, 7,200 RPM, Side Exhaust
Dynabrade 53278 7" Vacuum Disc Sander- 6,500 RPM
Dynabrade 52907 1/4" Drill, Central Vacuum, .4 HP, Rear Exhaust, 5,500 RPM
Dynabrade 78809 4" Dia. x .020 x 5/8"-11 UNC Roughneck Stringer Bead Twist Wire Wheel, Steel
Dynabrade 52222 .5 hp 7 Degree Offset Die Grinder, Rear Exhaust, Short Shank, 20,000 RPM, 1/4" Collet
Dynabrade 90487 1" W x 24" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 64208 33" (84 cm) W x 41" (104 cm) L Downdraft Sanding Table, 230 V (AC)
Dynabrade 52216 .5 hp 7 Degree Offset Die Grinder, Front Exhaust, Long Shank, 15,000 RPM, 1/4" Collet
Dynabrade 14306 Dynangle II Abrasive Belt Tool, Dual Motor w/Platen
Dynabrade 52289 .7 hp 7 Degree Offset Die Grinder, Front Exhaust, Short Shank, 18,000 RPM, 1/4" Collet
Dynabrade 11305 Contact Arm Ass'y, 3/8" Dia. x 1" W, 40 Duro
Dynabrade 67211 Utility Arm, 4" Dia. x 1/2" W, 70 Duro Rubber Tight Radius
Dynabrade 52223 .5 hp 7 Degree Offset Die Grinder, Rear Exhaust, Short Shank, 24,000 RPM, 1/4" Collet
Dynabrade 52221 .5 hp 7 Degree Offset Die Grinder, Rear Exhaust, Short Shank, 18,000 RPM, 1/4" Collet
Dynabrade 91328 11-1/4" Dia. x 30 Micron A/O Hook "O"-style Vacuum Microfinishing Disc, 10/Box
Dynabrade 50340 4-1/2"-5" (114 mm-127 mm) Dia. Pistol Grip Depressed Center Wheel Grinder, .7 HP, 11,000 RPM, 5/8"-11 Spindle
Dynabrade 90277 3-1/2" W x 15-1/2" L 180 Grit A/O DynaCut Belt, 10/pack
Dynabrade 61318 Locking Random/Rotary Orbital Head Ass'y
Dynabrade 94507 3-1/4" Dia. x 3" W Standard Dynacushion Pneumatic Wheel
Dynabrade 79261 6" Dia. x 120 Grit A/O Vacuum PSA DynaCut Disc, 100/Roll
Dynabrade 50348 7" (178 mm) Dia. Right Angle Depressed Center Wheel Grinder, 2 HP, 6,000 RPM, 5/8"-11 Spindle
Dynabrade 52418 3" (76 mm) Straight-Line Central Vacuum Flush Cut-Off Wheel Tool
Dynabrade 90740 5" Dia. x 1" W, 120 Grit, Z/A DynaCut Band, 10/pack
Dynabrade 30200 Dynascaler Surface Preparation Tool, Over-Under, 1", Rear Exhaust, 2,100 RPM
Dynabrade 79898 8" Dynacut 400 Grit Extreme Orange Scalloped Edge Discs, 25 per box
Dynabrade 79903 3-1/2" Dia. x 220 Grit A/O Non-Vacuum PSA DynaCut Disc, 100/box
Dynabrade 78415 5" Dia., Medium, Hook and Loop, DynaBrite NWN Surface Conditioning Disc, 25/pack
Dynabrade 11282 Contact Wheel Ass'y, 3/4" Dia. x 5/8" W x 3/8" I.D., Crown Face, 70 Duro Rubber
Dynabrade 78814 Crimped Wire Cup Brush 3" Dia. x .014 x 5/8"-11 UNC AH Steel
Dynabrade 25235 Air Motor Cylinder
Dynabrade 90762 1" Dia. x 2" W, Medium, Non-Woven DynaBrite Band, 10/pack
Dynabrade 02599 Gear
Dynabrade 15336 Rubber Drive Wheel
Dynabrade 01057 Vane (5/Pkg.) 
