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 51700 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
3M 22396, Roloc Disc 361F, 36 YF-weight, TR, 1-1/2 in, Die R150S, 7000045091
3M 56038, Hookit Microfinishing Film Disc 268L, 30 Mic, Type D, 3 in x 7/8 in, Die 300M, 7000000297, 100/Case
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 81729, Disc Pad Face Plate Ribbed, 9 in Hard Black, 7000148244
3M 29836, Sanding Screen, 60 Grit, 18 in x NH, 7100160820
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
Dynabrade 51750 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
Dynabrade 51333 .7 hp Router, 4" Base, Central Vacuum, 20,000 RPM, 1/4 Collet
3M 05280, Marine Adhesive Sealant 4000 UV, White, 3 oz Tube, 7000121531, 6/Case
3M 71883, Flexible Diamond Hand File 6210J, No 2, White, 18, N20, 7000082161, 10 Per Case
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
Dynabrade 14000 Dynafile Abrasive Belt Tool
3M 47181, Polyurethane Adhesive Sealant 550FC Fast Cure, Black, 600 mL Sausage Pack, 7100197989, 12/Case
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
Standard Abrasives 713297, Aluminum Oxide Handy Roll, P120 J-weight, 2 in x 50 yd, 7100031623
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
3M 35831, Hookit Dust Extraction Flexible Radius Sanding Block, 178 mm x 66 mm, 7100256512
3M 20230, Scotch-Seal Metal Sealant 2084, Silver, 5 Gallon Drum (Pail), 7000046344
3M 20910, PSA Cloth Disc 348D, 60 X-weight, 2 in x NH, Die 200P, 7000118872
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
3M 87270, Scotch-Weld Epoxy Adhesive DP105, Clear, 200 mL Duo-Pak, 7010309884, 12/case
ACS Diamond Cloth Belt, CX1250 1/2" X 18" 250U
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3M™ 07012, Supplied Air Hose W-9435-100/07012(AAD), 100 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005375, 1 EA/Case
Dynabrade 51756 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 35,000 RPM, 1/8" Collet
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
Dynabrade 55500 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 1/8" Collet
3M™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
3M 97105, Cartridge Roll 341D, 60 X-weight, 5/8 in x 1-1/2 in x 1/8 in, 7010363831
Standard Abrasives 708751, PSA A/O Disc, 12 in x NH, 60, 7010370081
Air Turbine Tools 310RDM - 1/4" Router Hand Tool Series, 40,000RPM, 33442
3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case
3M 97956, Super 77 CA Multipurpose Spray Adhesive, Low VOC <25%, Clear, 24 fl oz Can, 7100014109, 12/Case
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097 
