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.

ACS Diamond Grinding Disc, 4-1/2" Dia. X 5/8"-11 Center Hub Thread, Type 29, 36 Grit
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case
3M 85309, Aluminum Foil Tape 425, Silver, 3/4 in x 60 yd, 4.6 mil, 7100053743
Standard Abrasives 713638, Cartridge RoII Mandrel, 3/32 in x 3/4 in x 1/8 in x 1 in x 2-3/4 in CM-2B, 7010294964
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 69471 - 3-1/2" (89 mm) Dia. Dynorbital Silver Supreme Drop-In Motor 10 Pack
Dynabrade 78505 1-1/2" x 1/2", 1/4-20 Female Center Thread, 60 Grit, 8-Ply, Dynacut A/O Square Pad, 100/pack
Dynabrade 18422 Rear End Plate
Dynabrade 91070 1" Dia. x 1-1/2" W, 80 Grit, Z/A DynaCut Band, 10/pack
Dynabrade 93596 1/2" Dia. x 3-48 Female Center Thread, 220 Grit, A/O, 3-Ply, J-DynaCut Eyelet Star, 50/pack
Dynabrade 92027 2" Dia. x 60 Grit Ceramic DynaCut Locking-Type Disc, 2 Ply Cloth, 25/pack
Dynabrade 53182 Pin
Dynabrade 52662 1 hp Straight-Line Die Grinder, Rear Exhaust, 3,400 RPM, 1/4" Collet
ACS Diamond Cloth Belt, CX1250 3" X 90" 75U 
