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.

3M 08186, Replacement Applicator Plunger, 7010300589
3M 07959, Sanding Screen, 100 Grit, 7-7/8 in x 3/16 in, 7100160279
3M 08027, Marine Grade Silicone Sealant, White, 304 mL Cartridge, 7000120476, 12/Case
3M 62820, Adhesive Sealant 760 UV, Gray, 600 mL Sausage Pack, 7000046611, 12/Case
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
3M 22396, Roloc Disc 361F, 36 YF-weight, TR, 1-1/2 in, Die R150S, 7000045091
Norton 66261014792 - 2" Medium Grade Aluminum Oxide Bear-Tex Speed-Lok High Strength Maroon TR Non-Woven Abrasive Disc 160 Each
Standard Abrasives 725017, Buff and Blend Cross Buff GP, A/O Fine, 3/4 in x 3/8 in x 2 Ply x 8-32, 7010330367
Dynabrade 90874 2" Dia. Very Fine NWN DynaBrite Locking-Type Disc, 25/pack
Insize ISY-100-27066, SUPPORT HEAD, aluminum, 6940561975130
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
3M 05519, Sanding Block, Rubber, 2-3/4 in x 5 in, 7000000587
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
Norton 66254489957 Wheel, Vortex-7am, 6" X 1/2" X 1" C2312 Nor VTME7 PH VTC+, 4 Each
3M 29836, Sanding Screen, 60 Grit, 18 in x NH, 7100160820
3M 29822, Sanding Screen, 120 Grit, 20 in x NH, 7100160250
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
Dynabrade 91430 1/2" W x 12" L 120 Grit A/O DynaCut Belt, 50/pack
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 65033, Scotch-Brite Diamond Wheel, 645DC 6 in x 1/2 in x 1 in, 7010365574, Box of 3
Dynabrade 94992 1/4" Male Composite-Style Coupler with 1/4" Male Plug Assembly
3M 62812, Adhesive Sealant 740 UV, White, 290 mL Cartridge, 7100116448, 12 per case
3M 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
3M 16579, Accuspray ONE Replacement Spray Gun, 7100096183
ACS Diamond Cloth Belt, CX1250 1" X 42" 200U
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 36879, Self-Stick Liquid Protection Fabric, Blue, 28 in x 300 ft, 7100169496
Dynabrade 78425 4-1/2" Dia. x 3/8" Coarse DynaBrite Surface Conditioning Disc, 25/pack
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113 
