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 55722, Stikit Film Disc 375L, 6 x NH P1000 w/Skipslit Liner, 7100075240, 250 per case
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M 19674, Scotch-Seal Industrial Sealant 800, Reddish Brown, 5 oz Tube, 7000000792, 36/Case
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
Norton 66623325035 - 2" 120 Grit Fine Grade Aluminum Oxide Vortex Rapid Prep Green TR Non-Woven Surface Preparation Disc, 50 Each
3M 42825, Electrically Conductive Single-Sided Tape 5113SFT-50, Grey, 105 mm x 10 m, 8 Rolls/Case, Sample, 7100313605
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
3M 27423, Cloth Belt 340D, 80 X-weight, 6 in x 48 in, Film-lok, Single-flex, 7100231504, 20 per case
3M 54371, Particulate Respirator 8577, P95, with Nuisance Level, Organic Vapor Relief, 7000002062, 80 EA/Case
3M 05182, Scotch-Brite Cut and Polish Wheel, CP-WL, 5A Fine, 6 in x 1/2 in x 1 in, 7100050403,Box of 4
Dynabrade 45209 Sleeve for 48201, 25,000 RPM
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M 31663, Cubitron II Net Disc 80+/180+/320+, includes 6 in discs and sheets, Job Pack, 7100251881, 100 Packs/Case
ACS Diamond Cloth Belt, CX1250 3" X 90" 45U
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 77116, Scotch Brite Roloc Deburr & Finish PRO Unitized Wheel, DP-UR, 4C Medium+, TR, 3 in x 1/4 in x NH, 7010295274
3M 28443, Disc Pad Face Plate Ribbed 28443, 4-1/2 in Extra Hard Red, 7000045279
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
Dynabrade 92206 1/8" W x 12" L 80 Grit A/O DynaCut Belt , 50/pack
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 21356, Wetordry PSA Paper Disc 431Q, 120 C-weight, 12 in x NH, Die 1200B, 7010308871
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
ACS 1/2 in x 18 in Diamond Metal Bond Belt, 120M/125u 
