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

Dynabrade 78326 2" x 1" x 1/4 Shank, 120 Grit, Dynabrite Interleaf Wheel, 10/pack
Dynabrade 95101 Air Hose
Dynabrade 13100 Lightweight Dynastraight Finishing Tool, .4 HP, Rear Exhaust, 950 RPM
3M 30204, Disposable Plastic Wheel Maskers, X-Large, 125 per box, 7000125076
Dynabrade 82567 1" W x 18" L 120 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 92595 5" Dia, Medium, Hook-Face Surface Conditioning DynaBrite Disc, 10/pack
Dynabrade 51078 Bearing
Dynabrade 91079 1-1/2" Dia. x 1-1/2" W, 80 Grit, Z/A DynaCut Band, 10/pack
Dynabrade 48530 3" Dia. Right Angle Disc Sander, Rear Exhaust, .4 HP, 12,000 RPM
Dynabrade 92154 1/2" W x 12" L 120 Grit Ceramic DynaCut Scalloped Edge Belt, 50/pack
Dynabrade 52862 .4 hp Straight-Line Pencil Grinder, 25,000 RPM, 3mm Collet
Dynabrade 90594 1-1/2" W x 30" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 79898 8" Dynacut 400 Grit Extreme Orange Scalloped Edge Discs, 25 per box
Dynabrade 92178 1/4" W x 30" L 120 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 92192 2" W x 30" L 80 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 79037 3/4" W x 18" L 120 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 79168 1/2" W x 30" L 80 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 79173 2" W x 30" L 60 Grit Ceramic DynaCut Belt, 10/pack
Dynabrade 79043 3" W x 24" L 36 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 79152 1" W x 24" L 80 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 53249 9" Dia. Type 27 Vertical Depressed Center Wheel Grinder, 3 HP, 6,000 RPM, 5/8"-11 Spindle
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 90123 - 12" x 12" Premium Microfiber Wipe, 10-Pack, Teal
Dynabrade 52410 3" Dia. 7 Degree Offset Disc Sander, Front Exhaust, .7 HP, 15,000 RPM, 3/8"-24 Thread
Dynabrade 64002 SuperFinisher, 230 Volts (AC), 1 Phase, 50 Hz
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
Dynabrade 78699 D9-6 Cartridge Roll Mandrel 1/8" Pilot Dia. x 1" Pilot Length, 1/4" Dia. Shank x 6" Shank Length
Dynabrade 51301 .5 hp Straight-Line Die Grinder
Dynabrade 79901 3-1/2" Dia. x 120 Grit A/O Non-Vacuum PSA DynaCut Disc, 100/box
Dynabrade 69461 Drop-In Motor
Dynabrade 95462 1/2" NPT Original Aluminum Dynaswivel
Dynabrade 94407 1/4" NPT Composite-Style Flow Control Dynaswivel
Dynabrade 96154 Seal
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094 
