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.

Dynabrade 62778 Main Cloth Assembly
Dynabrade 52834 1/4" Drill, .4 HP, Rear Exhaust, 3,600 RPM
Dynabrade 11619 Contact Wheel, 4" Dia. x 1" W x 5/8" I.D., Crown Face, 40 Duro Rubber
Dynabrade 78249 11-1/4" Dia., Medium, Hook-Face DynaBrite Disc, 10/pack
Dynabrade 02391 Housing Ass'y for 53811, 20,000 RPM
Dynabrade 82488 6" Dia. x 80 Grit A/O Vacuum PSA Filmbac DynaCut Disc, 100/Pack
Dynabrade 57748 Ring Gear
Dynabrade 91528 5" Non-Vacuum 100 Grit, Dynacut Extreme Orange Premium Film PSA Disc, 50/pack
Dynabrade 53157 Shroud
Dynabrade 80022 Dynamount Bench Mount (for Dynabelters)
Dynabrade 92260 2-1/4" W x 9-3/4" L 60 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 90335 3/4" W x 20-1/2" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 79315 5" Dia. x 7/8" Center Hole, 36 Grit, A/O DynaCut Fiber Disc, 25/box
Dynabrade 91569 6" Dynacut Extreme Orange Premium Film Disc, 320 Grit, Hook & Loop, Vacuum Holes, 50/Box
Dynabrade 94524 Sintered Bronze Muffler
Dynabrade 63987 - 3" 70 Dur. Contact Wheel Kit SuperFinisher
Dynabrade 11431 Dynafile Housing Ass'y for Model 14000
Dynabrade 78415 5" Dia., Medium, Hook and Loop, DynaBrite NWN Surface Conditioning Disc, 25/pack
Dynabrade 91318 11-1/4" Dia. x 60 Grit A/O "O" - style Vacuum Hook-Face DynaCut Disc, 10/Box
Dynabrade 78077 2" W x 34" L Very Fine NWN DynaBrite Belt, 10/Pack
Dynabrade 15348 Contact Wheel Ass'y, 2" Dia. x 1" W x 5/8" I.D., Standard Face, 70 Duro Rubber
Dynabrade 78693 D21 Cartridge Roll Mandrel 1/4" Pilot Dia. x 1" Pilot Length, 1/4" Dia. Shank x 1-1/4" Shank Length
Dynabrade 90354 3-1/2" W x 15-1/2" L 80 Grit A/O DynaCut Belt, 10/pack
Dynabrade 94877 Female Straight Connector (for 5/16" I.D. Hose)
Dynabrade 51971 Planetary Casing
Dynabrade 78502 1" x 1/2", 8-32 Female Center Thread, 80 Grit, 8-Ply, Dynacut A/O Square Pad, 100/pack
Dynabrade 52576 3" (76 mm) Dia. Straight-Line 6" (152 mm) Extension Cut-Off Wheel Tool, Rear Exhaust, 1 HP, 15,000 RPM, 3/8"-24 Spindle
Dynabrade 52564 4-1/2"-5" (114 mm-127 mm) Dia. Right Angle Disc Sander
Dynabrade 64400 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Down Exhaust
Dynabrade 52676 1 hp Straight-Line 6" (152 mm) Extension Die Grinder, Rear Exhaust, 12,000 RPM, 1/4" Collet
Dynabrade 64627 Dust Bags (12/Pkg.) 
