Faster Cut, Finer Finish
Uniquely engineered to tackle the toughest jobs, 3M™ Diamond Cloth Belt 641WY is constructed with micron-graded diamond particles encapsulated in a ceramic bead. As the ceramic erodes, diamond particles continue to be exposed.
Diamond is extremely useful in grinding and polishing hard materials for its unique ability to produce excellent surface finishes combined with high removal rates.
This belt is engineered with a tough resin bond. This bond is durable and excellent for hard-to-grind materials. This product material can be used with oil and water based lubricants.
Use Wet or Dry
A water-resistant X-weight cloth backing means it can be used wet as well as dry. Coolant is useful to clear grinding swarf and prevent debris from scratching the surface of a workpiece. It also keeps grinding temperatures cooler.
Tough Abrasive for Hard-to-Grind Materials
This belt’s overall toughness makes it ideal for polishing and finishing ceramics, chilled cast iron, thermal spray coatings, HVOF coatings and the many extremely hard composites being used more in industries.

Dynabrade 11214 Contact Arm Ass'y, 7/16" Dia. x 3/8" W, Rubber Wheel, with 1/2" W Platen
Dynabrade 78064 1/2" W x 30" L Medium NWN DynaBrite Belt, 10/pack
Dynabrade 11615 Contact Wheel, 1" Dia. x 1" W x 5/8" I.D., Flat Face, 80 Duro Rubber
Dynabrade 91754 DynaMesh 11" 240 Grit Hook & Loop Discs, 25 per box
Dynabrade 78657 3/8" Dia. x 1-1/2" W x 1/8" Center Hole, Tapered Cartridge Rolls, A/O, 80 Grit, 100/pack
Dynabrade 93395 4" Dia. x 1/2" Center Hole, 180 Grit, A/O,. Arbor-Mount Sanding Star, 10/pack
Dynabrade 78106 3" Dia. x 120 Grit A/Z DynaCut Locking-Type Disc, 2 Ply Cloth, 25/pack
Dynabrade 48355 .4 hp Straight-Line Die Grinder, Rear Exhaust, 35,000 RPM, 1/4" Collet
Dynabrade 91984 JH-20 3/4" Vi-Sorb Pad
Dynabrade 54742 3" (76 mm) Dia. Extended Right Angle Type 1 Cut-Off Tool, Steel Housing, .7 HP, 18,000 RPM, 3/8"-24 Spindle
Dynabrade 93689 Extension Cap
Dynabrade 91117 1/2" W x 18" L 60 Grit A/O DynaCut Belt, 50/pack
Dynabrade 52276 .7 hp Straight-Line Die Grinder, Rear Exhaust, 15,000 RPM, 1/4" Collet
Dynabrade 78422 7" Dia., Very Fine, Hook and Loop, DynaBrite NWN Surface Conditioning Disc, 25/pack
Dynabrade 78048 1/4" W x 24" L Super Fine NWN DynaBrite Belt, 10/pack
Dynabrade 93394 4" Dia. x 1/2" Center Hole, 150 Grit, A/O,. Arbor-Mount Sanding Star, 10/pack
Dynabrade 52721 Cone or Plug 6" (152 mm) Extension Wheel Grinder, 18,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 92101 3" W x 10-11/16" L 60 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 57822 Boot
Dynabrade 48370 .4 hp Straight-Line Die Grinder, Rear Exhaust, 25,000 RPM, 1/8" Collet
Dynabrade 52432 4" (102 mm) Dia. 7 Degree Offset Cut-Off Wheel Tool, Rear Exhaust, .7 HP, 15,000 RPM, 3/8"-24 Spindle
Dynabrade 31935 1" to 1-1/4" Vacuum Whip Hose 4" Long w/Swivel Adaptor
Dynabrade 56595 Air Motor Cylinder Assembly
Dynabrade 79033 1/2" W x 18" L 120 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 90680 3/4" W x 7" L 50 Grit, A/O, Small DynaRoll, 5/pack
Dynabrade 93099 7" Dia x 1/4" Center Hole, A-Medium, High Strength DynaBrite Clean-N-Finish Disc, 25/pack
Dynabrade 53611 Spindle
ACS Diamond Cloth Belt, CX1250 3" X 90" 45U 
