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

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Dynabrade 79123 1/2" W x 18" L 60 Grit DynaCut Premium Ceramic Belts, 50/pack
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 54262 - 3" Vacuum, Hook Pad, .44" Thickness, 1/4"-20 Thread
Dynabrade 93351 Carbide Burr 12-Piece Burr Kit, 1/8" Shank
Dynabrade 63600 RaptorVac PowerHead Replacement for 61200
Dynabrade 68000 Coolant Filtration System, 115 V (AC), 1 Phase, 60 Hz
Dynabrade 98597 Retainer Ring
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 22070 Downdraft Table Accessory Pack (Air Manifold, FRL and On/Off Air Valve)
Dynabrade 79139 1/8" W x 24" L 60 Grit Ceramic DynaCut Belts, 50/pack
Dynabrade 50267 4-1/2" Dia. Disc Backing Pad, 5/8"-11 Thread
Dynabrade 50122 3" Dia. Disc Backup Pad Pad, 3/8"-24 Thread, Hook 'N Loop
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 79109 1/2" W x 12" L 80 Grit DynaCut Premium Ceramic Belts, 50/pack
Dynabrade 79134 3/4" W x 20-1/2" L 60 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 79152 1" W x 24" L 80 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 78765 2" Dia. x 2" W x 1/4" Shank, Fine, NWN DynaBrite Wheel, 10/pack
Dynabrade 82577 1/2" W x 24" L 80 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 82459 5" Dia. x 180 Grit A/O PSA Filmbac DynaCut Disc, 100/Box
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 15300 Dynafile III Abrasive Belt Tool
Dynabrade 90924 3" Dia. x 40 Grit A/Z DynaCut Locking-Type (TR), Flap Disc, 10/pack
Dynabrade 91425 1/4" W x 12" L 60 Grit A/O DynaCut Belt, 50/pack
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
Dynabrade 64900 Variable Speed Versatility Grinder, 1 hp, 115 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
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738 
