Designed for grinding materials to final dimension, our 3M™ Trizact™ Diamond Cloth Belts 663FC can tackle hard-to-grind materials including ceramics, carbides, chilled iron and composites. They also work well for stripping old thermal spray coating during the refurbishment process. These belts cut up to 70% faster than bonded wheels – without chatter. And because they are easy to use, even less-experienced operators can achieve consistent, effective stock removal throughout the life of the belt.
3M™ Trizact™ Diamond Cloth Belts 663FC feature a waterproof YF-weight cloth backing, which means these belts can support high-pressure tough applications when run wet or dry. The abrasive side of the belt features three-dimensional structures derived from proprietary 3M technology. Unlike conventional abrasives, which are constructed from randomly-spaced and irregular-shaped minerals, Trizact abrasives feature precisely-shaped three-dimensional structures that help deliver more consistent performance and eliminate belt-to-belt variation.

Dynabrade 50782 Adapter
Dynabrade 60099 Hex Jam Nut
Dynabrade 52721 Cone or Plug 6" (152 mm) Extension Wheel Grinder, 18,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 52715 Cone or Plug Wheel Grinder, 12,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 59511 Dynorbital-Spirit Drop-In Motors (10 Pack)
Dynabrade 15347 Contact Wheel Ass'y, 2" Dia. x 1" W x 5/8" I.D., V-Shaped Face, 70 Duro Rubber
Dynabrade 64861 Variable Speed Versatility Grinder, Slack-Action, 1 hp, 120 V (AC), 1 Phase, 50/60 Hz, 600-4,000 SFPM, for 1/4"-2" W x 72" L (6-51 mm x 122 cm) Belts
Dynabrade 01033 Needle Bearing
ACS 1/2 in x 24 in Diamond Metal Bond Belt, 120M/125u 
