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 25249 Tip Valve
Dynabrade 40773 Armature Assembly, 120V, Type A
Dynabrade 96228 Swivel Fitting
Dynabrade 93921 5" Dia. x 3/4" Center Hole, 40/50 Grit Continuous Rim Diamond Cut-Off Wheel
Dynabrade 53077 1/4" Straight-Line Drill, .4 HP, Rear Exhaust, 950 RPM
Dynabrade 01748 Exhaust Cover
Dynabrade 02599 Gear
Dynabrade 54730 3" (76 mm) Dia. Right Angle Type 1 Cut-Off Tool, Rear Exhaust, .7 HP, 18,000 RPM, 3/8"-24 Spindle
Dynabrade 79888 5" Dynacut 400 Grit Extreme Orange Scalloped Edge, 50 per box
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 52663 1 hp Straight-Line Die Grinder, Rear Exhaust, 4,500 RPM, 1/4" Collet
Dynabrade 18424 Cylinder
Dynabrade 13515 Dynastraight 6" (152 mm) Extension Finishing Tool, 1 HP, Rear Exhaust, 3,400 RPM, 5/8"-11 Arbor
Dynabrade 52202 .4 hp Straight-Line Die Grinder, Front Exhaust, 30,000 RPM, 1/4" Collet
Dynabrade 56880 5" Dia. Non-Vacuum Dynorbital Supreme Random Orbital Sander, 3/8" Orbit
Dynabrade 11219 Contact Arm Ass'y, 1" Dia. x 3/8" W, Radiused Rubber Wheel, with no Platen
Dynabrade 78810 4" Dia. x .020 x 5/8"-11 UNC Roughneck Stringer Bead Twist Wire Wheel, Stainless Steel
Dynabrade 13519 Dynastraight 6" (152 mm) Extension Finishing Tool, 1 HP, Rear Exhaust, 6,000 RPM, 5/8"-11 Arbor
Dynabrade 90294 3/4" W x 18" L Medium NWN DynaBrite Premium Belt, 10/pack
Dynabrade 51395 6"-8" (152 mm-203 mm) Dia. Right Angle Two-Hand Rotary Buffer
Dynabrade 91744 DynaMesh 8" 320 Grit Hook & Loop Discs, 50 per box 
