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 54021 1/4"-28 Male 1/4"-20 Male, 1-3/16" Length
Dynabrade 64964 Platen
Dynabrade 58506 3-7/8" W x 5-5/8" L Dynabug II Orbital Sander, Central Vacuum, .15 HP, 10,000 RPM, 3/32" Orbit
Dynabrade 02679 Shield
Dynabrade 57454 2-3/4" W x 8" L Non-Vacuum Dynaline Disc Pad, Vinyl-Face
Dynabrade 51348 2" Dia. Locking-Type Disc Pad, Medium Density, 1/4"-20 Thread
Dynabrade 31968 Conductive Y Adapter
Dynabrade 96644 Motor Tune-Up Kit for 2.8hp Rebel Series
Dynabrade 69461 Drop-In Motor
Dynabrade 54529 Shim (3/Pkg.)
Dynabrade 52436 4-1/2" (114 mm) Dia. 7 Degree Offset Vacuum Cut-Off Wheel Tool
Dynabrade 79688 8" 150 Grit, Extreme Orange Hook & Loop Disc w/8 Vac Holes, 25 per Box
Dynabrade 78425 4-1/2" Dia. x 3/8" Coarse DynaBrite Surface Conditioning Disc, 25/pack
Dynabrade 91564 6" Dynacut Extreme Orange Premium Film Disc, 100 Grit, Hook & Loop, Vacuum Holes, 50/Box
Dynabrade 59034 3-1/2" Dia. Central Vacuum Dynorbital-Spirit Random Orbital Sander, 3/32" Orbit
Dynabrade 91143 1/2" W x 18" L 40 Grit A/O DynaCut Belt, 50/pack
Dynabrade 51078 Bearing
Dynabrade 55523 .3 hp Straight-Line, 6" Extended Die Grinder, Aluminum Housing 25,000 RPM, Rear Exhaust, 1/4" Collet
Dynabrade X32V - 3" Dia. Cen-Vacuum Dynorbital® Mini Extreme Random Orbital Sander
Dynabrade 900 8" Dia. Two-Hand Gear-Driven Sander, Non-Vacuum, .25 HP, 800 RPM, 3/16" Orbit, PSA
Dynabrade 79825 3" P3000 Grit Dynasoft Finishing Film Non Vac Hook Face Disc, 50 per box
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
Dynabrade 61564 "Y" Adaptor Kit
Dynabrade 56759 .7 hp Straight-Line Die Grinder, Central Vacuum, 15,000 RPM, 1/4" Collet
Dynabrade 95600 Tune-Up Kit for .5 hp Motor
Dynabrade 82442 6" Dia. x 60 Grit A/O Hook Non-Vacuum Film-Backed DynaCut Disc, 100/Box
Dynabrade 50947 - 8" (203 mm) Dia. Non-Vacuum Wet/Dry Sander Disc Pad, Hook-Face, Short Nap
Dynabrade 96746 General Purpose Cleaning Kit
Dynabrade 01435 Collet Body
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Dynabrade 78459 1" Dia. x 3/8", 3-48 Female Center Thread, 120 Grit A/O, 8 Ply, J-DynaCut Cross Pad, 100/pack 
