Deburr, Blend and Finish Stainless Steel
3M Cloth Belt 777F contains a grinding aid that reduces running temperatures when used on heat-sensitive alloys like stainless steel, nickel alloys and cobalt alloys. The abrasive grain is bonded to the backing with resin to maintain durability under high heat and pressure. This belt is recommended for use on stainless steel or other exotic metal alloys for dimensioning parts, deburring, blending, and finishing castings and forgings.
Ceramic Abrasive Grain Boosts Performance
For increased performance, 777F products feature aluminum oxide blended with 3M ceramic abrasive grain for a harder, longer-lasting abrasive. Ceramic/aluminum oxide blend surpasses aluminum oxide abrasives in cut-rate and durability and makes the Cloth Belt 777F an excellent choice for moderate stock removal and surface preparation.
Sized to Suit Your Needs
These abrasive belts are available in various widths and lengths for sanding both wood and metal. We offer a broad selection of belts to fit most any industrial belt sander. Wider belts are used with wide belt sanders to dimension or finish wood panels, smooth rough-cut edges of metal sheets, or add a grain pattern to stainless steel sheets. Medium-width belts fit onto edge sanders for sanding flat, narrow surfaces such as panel edges; and narrow belts are used with portable belt sanders for sanding or blending wood pieces such as cabinet doors.
Find Your Flex
Belts come with various flexibilities and splices that join the belt ends. Our 3M Cloth Belt 777F has a film splice for added strength when grinding in high pressure applications. When greater flexibility may be needed to increase conformity or for a softer touch for finishing and blending, an L-flex provides more flexibility than the standard flex, and a full flex belt is the most flexible.
Applications
- Moderate stock removal
- Deburring stainless steel
- Finishing stainless steel
- Surface preparation

Standard Abrasives 260013, Cross Buff Kit 260013, 7000121667
Dynabrade 06095 "O" Ring
Dynabrade 57127 3" (76 mm) Dia. Right Angle Depressed Center Wheel Grinder, Steel Housing, .55 HP, 15,000 RPM, 3/8"-24 Spindle
Dynabrade 56829 6" Dia. Self-Generated Vacuum Dynorbital Supreme Random Orbital Sander, 3/16" Orbit
Dynabrade 11518 Rubber Drive Wheel
Dynabrade 78591 3/8" Dia. x 1" W x 1/8" Center Hole, 80 Grit, 100/pack
Dynabrade 91542 5" Dynacut Extreme Orange Premium Film Disc, 320 Grit, Hook & Loop, Vacuum Holes, 50/Box
Dynabrade 79822 3" P1500 Grit Dynasoft Finishing Film Non Vac Hook Face Disc, 50 per box
Dynabrade 78782 DynaCut Wire Cup Brush 3" Dia. x .014 5/8-11 UNC AH Steel
Dynabrade 78046 1/4" W x 24" L Medium NWN DynaBrite Belt, 10/pack
Dynabrade 58045 Vacuum Dynafine Tear-Drop Disc Pad, Vinyl-Face
Dynabrade 58514 2-3/4" W x 7-3/4" L Dynabug II Orbital Sander, Non-Vacuum, .11 hp, 8,000 RPM, 3/16" Orbit
Dynabrade 54359 .7 hp Right Angle Die Grinder, Rear Exhaust, 18,000 RPM, 1/4" Collet
Standard Abrasives 704406, A/O Straight Cartridge Roll, 1/4 in x 1-1/2 in x 1/8 in 60, 7100080008
Dynabrade 58442 6" Dia. Two-Hand Gear-Driven Sander, Non-Vacuum, Non-Vacuum, .45 HP, 900 RPM, PSA
Dynabrade 15316 Steel Drive Wheel
Dynabrade 91709 DynaMesh 3" 400 Grit Hook & Loop Discs, 50 per box
Dynabrade 93341 Carbide Burr, 1/8" Dia., SC-42 D/C Burr, Cylinder-Radiused End, 9/16" Flute L, 1/8" Shank
Dynabrade 78412 3" Dia. x 1" W x 1/4" Shank, 120 Grit, A/O DynaCut Flap Wheel
Dynabrade X61 6" (152 mm) Dia. Non-Vacuum Dynorbital Extreme Random Orbital Sander, .3 HP, 12,000 RPM, 3/16" Orbit, PSA
Dynabrade 78751 1" x 1"-A38 DynaFire A/O Mounted Point, Vitrified, 5/pack
Dynabrade 90493 1/2" W x 30" L 180 Grit A/O DynaCut Belt, 50/pack
Dynabrade 79172 2" W x 30" L 40 Grit Ceramic DynaCut Belt, 10/pack
Dynabrade 57503 Palm-Style Mini-Dynorbital Random Orbital Sander
Dynabrade 79026 1/4" W x 18" L 40 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 13503 Dynastraight Finishing Tool, 1 HP, Rear Exhaust, 3,400 RPM, 5/8" (16 mm) Dia. Arbor
Dynabrade 32016 55 Gallon Drum
Norton 66261199696 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 7AM U2305, 40 Each
Dynabrade 57055 Front Ring
Dynabrade 96746 General Purpose Cleaning Kit
Dynabrade 11462 Dynabelter Finisher
Dynabrade 78752 2" x 1"-W242 DynaFire A/O Mounted Point, Vitrified, 5/pack
Dynabrade 78462 1-1/2" Dia. x 1/2", 8-32 Female Center Thread, 180 Grit A/O, 8 Ply, J-DynaCut Cross Pad, 100/pack
Dynabrade 92758 3" W x 150' L 9 Micron A/O Lapping Film DynaCut Roll 
