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 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 34672, 641WY, 1/2" X 64", 100 Mesh, Diamond Cloth Belts 7100111364
3M 62610, Scotch-Weld Threadlocker TL62, Red, 50 mL Bottle, 7100039196, 10/case
3M 62611, Scotch-Weld Threadlocker TL62, Red, 250 mL Bottle, 7100039195, 2/case
3M 16314, PPS Lid & Liner Kit, Mini (6 fl oz), 125 Micron Full
Diameter Filter, 50 Lids & Liners per kit, 7000045487
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 03601, Plastic Emblem and Trim Adhesive, 1 oz, 7100045880, 24 per case
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
ACS Diamond Cloth Belt, CX1250 1/4" X 24" 75U
Standard Abrasives 726070, A/O C2 Straight Precision Cartridge Roll, 5/8 in x 2-1/2 in x 1/4 in 60, 7100098797
Standard Abrasives 713218, A/O Straight Cartridge Roll, 5/8 in x 1-1/2 in x 1/8 in 60, 7100102807
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
3M 88902, PSA Cloth Disc 348D, 80 X-weight, 12 in x NH, Die 1200B, 7000118895
Dynabrade 78592 3/8" Dia. x 1" W x 1/8" Center Hole, 120 Grit, 100/pack
3M 07832, Multi-Purpose Spray Adhesive 27, Clear, 16 fl oz Can (Net Wt 13.05 oz), 7000028596, 12/Case
3M 05280, Marine Adhesive Sealant 4000 UV, White, 3 oz Tube, 7000121531, 6/Case
3M 26580, Accuspray ONE Spray Gun System with PPS Series 2.0 Spray Cup System, 7100163226
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
3M 66261, Wind Protection Tape Edge Sealer W2600, 50 ml (1.7 fluid ounce), 7000049496, 12/Case
Dynabrade 92051 2" Dia. x 2" W, 36 Grit, Z/A DynaCut Band, 10/pack
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
Standard Abrasives 863198, Quick Change TR A/O Unitized Wheel, 631, 3 in x 1/4 in, 7010330152
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
3M 05048, Cloth Belt 384F, 80+ XF-weight, 1 in x 12 in, Fabri-lok, Full-flex, 7100141432, 200 per case
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 08742, Inhalation Valve 7282, 7000125986, 200 EA/Case
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 16067, PPS Mix Ratio Insert - Generic, 3 oz, 7000119840, 10 Inserts Per Pack
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
Standard Abrasives 713066, PSA A/O Disc, 8 in x NH, 60, 7010370082
3M 65033, Scotch-Brite Diamond Wheel, 645DC 6 in x 1/2 in x 1 in, 7010365574, Box of 3
3M 09099, Scotch-Brite Paint and Rust Stripper Large Area 9099NA, 7010375230
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
Norton 66253370793 - 4 1/2" X 1/4" X 5/8"-11 Centert Hub, Quantum3 Ceramic Type 27 Depressed Center Grinding Wheel, 10 Each
3M 29859, Sanding Screen, 100 grit, 12 in x 18 in, 7100160861
3M 76623, Roloc Disc 777F, 50 YF-weight, TR, 1 in, Die R100N, 7000045619 
