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 713159, Aluminum Oxide Handy Roll, P120 J-weight, 1-1/2 in x 50 yd, 7010290409
3M 19771, Utility Cloth Sheet 314D, 9 in x 11 in P100 J-weight, 7000021272
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 95544 Gear Grease, 2.5oz. Tube
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Dynabrade 51301 .5 hp Straight-Line Die Grinder
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
3M 35124, Grippy Sanding Cloth Trial Kit, 7100230957
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
Dynabrade 91167 1/2" W x 13" L 120 Grit A/O DynaCut Belt, 50/pack
Standard Abrasives 712149, Aluminum Oxide Handy Roll, P100 J-weight, 1-1/2 in x 50 yd, 7010295370
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
Standard Abrasives 713296, Aluminum Oxide Handy Roll, P320 J-weight, 2 in x 50 yd, 7100034517
3M 36518, Green Corps Abrasive File Belt, 80 Grit, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100226321, 20 Belts Per Carton, 5 Cartons Per Case
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
3M 22396, Roloc Disc 361F, 36 YF-weight, TR, 1-1/2 in, Die R150S, 7000045091
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
Norton 66261014792 - 2" Medium Grade Aluminum Oxide Bear-Tex Speed-Lok High Strength Maroon TR Non-Woven Abrasive Disc 160 Each
Insize 2341-E1, DIAL DEPTH GAGE, 0-1.2", 6928640326677
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
3M 70894, 641WY 1/2" X 24", 100 Mesh Diamond Cloth Belt, 7010533228
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
Dynabrade 98265 3/8" Female Coupler with 3/8" Male Plug Assembly
3M 26583, Accuspray Refill Pack for PPS Series 2.0, Green, 1.3 mm, 7100152953
Dynabrade 94993 1/4" Male Composite-Style Coupler with 1/4" Female Plug Assembly 
