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.

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Dynabrade 31654 Key
Dynabrade 53811 .7 hp Straight-Line Die Grinder, Steel Housing, Front Exhaust, 20,000 RPM, 1/4" Collet
Dynabrade 98266 - 3/8" Female Coupler with 3/8" Female Plug Assembly
Dynabrade 52558 3" Dia. Right Angle Disc Sander, Rear Exhaust, .55 HP, 15,000 RPM, 3/8"-24 Thread
Dynabrade 53074 1/4" Right Angle Drill, .4 HP, Rear Exhaust, 5,000 RPM
Dynabrade 78850 Controlled Flare End Brush 1" Dia. x .014 x 1" Steel
Dynabrade 64651 48" (122 mm) W x 96" (244 cm) L Downdraft Sanding Table, 230 V (AC)
Dynabrade 57114 Vanes (5/Pkg)
Dynabrade 59332 Rear Bearing Plate
Dynabrade 91303 11-1/4" Dia. x 80 Grit A/O "O" - style Vacuum Hook-Face DynaCut Disc, 10/Box
Dynabrade 98042 Motor Control
Dynabrade 79826 DynaBolt AO SS 4.5" x .045" x 7/8" T42 Right Angle, Box of 10 Discs
Dynabrade 64985 Replacement Pre-Filter Blanket
Dynabrade 79361 5" Dia. x 100 Grit A/O Hook & Loop, Multi-Hole Vacuum Film-Backed DynaCut Disc, 100/Box
Dynabrade 52987 3/8" Drill, .4 HP, Rear Exhaust, 1,000 RPM
Dynabrade 01479 Rotor Spacer
Dynabrade 54374 .7 hp Extended Right Angle Die Grinder, Rear Exhaust, 12,000 RPM, 1/4" Collet
Dynabrade 52863 .4 hp Straight-Line Pencil Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade 51305 .5 hp Straight-Line Die Grinder, Rear Exhaust, 18,000 RPM, 1/4" Collet
Dynabrade 90083 8" Dia. Cutting Pad Assembly 
