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 52624 4" Dia. Right Angle Disc Sander
Dynabrade 91730 DynaMesh 6" 240 Grit Hook & Loop Discs, 50 per box
Dynabrade 50273 Locking Flange Nut, 5/8"-11 Thread
Dynabrade 11462 Dynabelter Finisher
Dynabrade 40326 Dynafile II Abrasive Belt Tool for 20-1/2" Belts
Dynabrade 18557 Wave Washer
Dynabrade 46001 .4 hp Right Angle Die Grinder, Rear Exhaust, 15,000 RPM, 1/4" Collet
Dynabrade 90312 1/2" W x 12" L Very Fine NWN DynaBrite Premium Belt, 10/pack
Dynabrade 31901 Conductive Hose Cuff, 1-1/2" Thread to 1" Non Thread
Dynabrade 78638 3/8" Dia. x 1-1/2" W x 1/8" Center Hole, Z/A, 80 Grit, 100/pack
Dynabrade 15013 Mini-Dynafile II Abrasive Belt Tool for 13" Belts
Dynabrade 93245 8" Dia. x 1/2" Center Hole, 120 Grit, A/O, Arbor-Mount Sanding Star
Dynabrade 48335 .4 hp 7 Degree Offset Die Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade 61205 RaptorVac Pneumatic DrumVac Kit, Single Operator, General Purpose
Dynabrade 69353 Vacuum Nozzle
Dynabrade 53682 Gasket
Dynabrade 11080 Contact Wheel Ass'y, 1" Dia. x 3/8" W x 3/8" I.D., Round Radiused Face, 70 Duro Rubber
Dynabrade M1004SP Mini Raptor Standard Pack
3M 29859, Sanding Screen, 100 grit, 12 in x 18 in, 7100160861
Dynabrade 94797 1" W x 72" L 180 Grit A/O DynaCut Belt, 10/pack
Dynabrade 51817 .7 hp Trim Router Replacement Air Motor
Dynabrade 14081 Spindle Adapter
Dynabrade 49420 .4 hp Angle-Head Die Grinder, Rear Exhaust, 3,200 RPM, 1/4" Collet
Dynabrade 92201 1-1/2" W x 30" L 60 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 13511 Dynastraight 6" (152 mm) Extension Finishing Tool, 1 HP, Rear Exhaust, 1,800 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 53415 Right Angle Mini-Dynorbital Random Orbital Sander
Dynabrade 50192 4" Dia. Locking-Type Disc Pad
Dynabrade 93919 3/4" x 3-48 Female Center Thread, Medium, Dynabrite Surface Conditioning Eyelet Star, 50/pack
Standard Abrasives 727399, Buff and Blend Cross Buff HS, A/O Medium, 2 in x 3/4 in x 2 Ply x 1/4-20, 7000047137
Dynabrade 82445 6" Dia. x 120 Grit A/O Hook Non-Vacuum Film-Backed DynaCut Disc, 100/Box
Dynabrade 52294 .7 hp 7 Degree Offset Die Grinder, Rear Exhaust, Short Shank, 20,000 RPM, 1/4" Collet
Dynabrade 61201 RaptorVac Electric DrumVac Kit, Dual Operator, For Use With Tools
Dynabrade 54791 4" (102 mm) Dia. Right Angle Type 27 Depressed Center Wheel Grinder, Steel Housing, .7 HP, 13,500 RPM, 3/8"-24 Spindle
Dynabrade 53252 7" Dia. Vertical Disc Sander, Rotational Exhaust, 2 HP, 7,200 RPM, 5/8"-11 Thread
Dynabrade 56800 3-1/2" Dia. Non-Vacuum Dynorbital Supreme Random Orbital Sander, 3/16 Orbit
Dynabrade 11004 Dynafile Screw-In Housing
Dynabrade 15321 Contact Arm Assembly , 7/8" Dia. .X 3/4" W
Dynabrade 54785 3" (76 mm) Dia. Extended Right Angle Type 27 Depressed Center Wheel Grinder, Steel Housing, .7 HP, 18,000 RPM, 3/8"-24 Spindle
Dynabrade 90701 3" Dia. x 2" W, 36 Grit, Z/A DynaCut Band, 10/pack
Dynabrade 14200 Dynangle Abrasive Belt Tool
Dynabrade 78493 4" Dia. x 2", 1/4-20 Female Center Thread, A/O, 60 Grit, 8-Ply J-DynaCut Cross Pad, 100/pack
Dynabrade X31V - 3" Dia. Cen-Vacuum Dynorbital® Mini Extreme Random Orbital Sander
Dynabrade 78552 1-1/2" Dia. 2-Set, 8-32 Female Center Thread, 180 Grit, Dynacut A/O Overlap Slotted Disc, 100/pack
Dynabrade 11682 Dynabelter Contact Arm Assembly, 4 Inch Dia x 1/2 Inch, 70 Durometer, Wheel Radiused
Dynabrade 90339 3-1/2" W x 15-1/2" L 320 Grit A/O DynaCut Belt, 10/pack
Dynabrade 93395 4" Dia. x 1/2" Center Hole, 180 Grit, A/O,. Arbor-Mount Sanding Star, 10/pack 
