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.

3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
Dynabrade 78600 3/8" Dia. x 2" W x 1/8" Center Hole, 120 Grit, 100/pack
Dynabrade 92030 1-1/2" Dia. x 1-1/2" W, 36 Grit, Z/A DynaCut Band, 10/pack
3M 06847, Overspray Masking Liquid Dry, 1 Gallon, 7010309222
3M 30702, Cloth Belt 577F, 50 YF-weight, 2 in x 132 in, Film-lok, Single-flex, 7010363104, 50 per case
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
Dynabrade 14360 Pneumatic Pipe Belt Finisher
Dynabrade 92114 1/2" W x 12" L 180 Grit A/O DynaCut Belt, 50/pack
3M 14708, Heavy Duty Spray Adhesive 20, Clear, 16 fl oz Can (Net Wt 13.8 oz), 7100179437, 12/Case
3M 01916, Scotch-Brite Metal Finishing Wheel, MF-WL, 5A Medium, 12 in x 1 in x 5 in, 7010365663
ACS Diamond Cloth Belt, CX1250 1/2" X 18" 125U
3M 05206, Marine Adhesive Sealant 5200, White, 1 oz Tube, 7010325697, 12/Case
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
Dynabrade 79202 1/2" W x 12" L Belt Assortment Pak
ACS Diamond Grinding Disc, 4-1/2" Dia. X 5/8"-11 Center Hub Thread, Type 29, 36 Grit
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090 
