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

3M 08019, Marine Grade Silicone Sealant, Clear, 3 oz Tube, 7000120480, 6/Case
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3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M™ 07010, Supplied Air Respirator Hose W-9435-25/07010(AAD), 25 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005374, 1 EA/Case
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3M 30702, Cloth Belt 577F, 50 YF-weight, 2 in x 132 in, Film-lok, Single-flex, 7010363104, 50 per case
Standard Abrasives 32985, Aluminum Oxide Overlap Disc, 714721, 60 Grit, 2 in x 8-32 x 2 Ply, 7100116380
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
Standard Abrasives 32953, PSA A/O Disc, 711880, 2 in x NH, 60, 7010310798
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Thread NPS, Side Cup Mount, 7100135940
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3M 58298, Scotch-Weld PUR Applicator Swivel Connector, 7000046653
3M 57894, 642WY 1/4" X 24", 50000 Mesh Diamond Cloth Belt, 7100230570
3M 62820, Adhesive Sealant 760 UV, Gray, 600 mL Sausage Pack, 7000046611, 12/Case
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3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
3M 53036, 663FC, 1/2" X 90", 20u, Diamond Trizact Belt 7100205970
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3M 41595, Polyurethane Sealant 540, Black, 310 mL Cartridge, 7100001804, 12/Case
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956
3M 14708, Heavy Duty Spray Adhesive 20, Clear, 16 fl oz Can (Net Wt 13.8 oz), 7100179437, 12/Case
3M 69602, Cloth Belt 777F, 60 YF-weight, 1 in x 11 in, Sine-lok, Full-flex, 7010295223, 500 per case
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 26613, Accuspray Atomizing Head Refill Pack for 3M PPS Series 2.0,Green, 1.3 mm, 7100141415 (4 Nozzles/Kit)
3M 20931, PSA Cloth Disc 348D, P100 X-weight, 1 in x NH, Die 100N, 7000118915
3M 81284, Scotch-Weld High Strength Retaining Compound RT38, Green, 250 mL Bottle, 7010367436, 2/case
Dynabrade 55500 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 1/8" Collet
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
3M Scotchkote Liquid Epoxy Coating Spray System HSS Mix Nozzle, RightAngle, 7000058900
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096 
