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 26200, PPS Series 2.0 Lid, Standard/Large, 200 Micron Filter, 7100135626
3M 13627, 947, Hookit Disc Pad Holder, 7 in x 1 in x 5/8 in 5/8-11 Internal, 7000028353
3M 16200, PPS Disposable Lids, Standard and Large, 200 Micron Filter,
25 lids per case, 7000119740
3M 26583, Accuspray Refill Pack for PPS Series 2.0, Green, 1.3 mm, 7100152953
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
Dynabrade 77767 5" Dia. x 7/8" Center Holes, 40 Grit, Z/A, Type 27, DynaCut Flap Disc w/Fiberglass, 10/pack
Dynabrade 95848 Dynabrade Gear Oil
Dynabrade 78596 3/8" Dia. x 1-1/2" W x 1/8" Center Hole, 120 Grit, 100/pack
3M 19770, Utility Cloth Sheet 314D, 9 in x 11 in P120 J-weight, 7000000358
Dynabrade 95675 1/4" Male Plug with 1/4" NPT Male Thread
3M 26106, PPS Series 2.0 Adapter, Type S22, 8 mm Male, 0.75 mm Thread, 7100135958
Standard Abrasives 713159, Aluminum Oxide Handy Roll, P120 J-weight, 1-1/2 in x 50 yd, 7010290409
Insize 1120-500, DIGITAL INSIDE GROOVE CALIPER, 1.57-20"/40-500mm, 6940561961034
3M 16611, Accuspray Atomizing Head, Clear, 1.8 mm, 7000000500 (4 Nozzles/Kit)
Dynabrade 91162 3/8" W x 13" L 60 Grit A/O DynaCut Belt, 50/pack
Standard Abrasives 78510, Ceramic Pro Type 27 Flap Disc, 645104, 4-1/2 in x 5/8-11 60 Y-weight, 7010369539, 10 per case
3M 85492, Scotch Foil Tape 3311-10A, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7010383663
3M 21713, Scotch-Brite Roloc Pro Brake Hub Cleaning Disc, XO-DR, 07546, SiC Extra Coarse, 1-1/2 in x 5/8 in, 7100176087
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
3M 19765, Utility Cloth Sheet 314D, 9 in x 11 in P280 J-weight, 7000000353
3M 33443, Cubitron II File Belt, 36+, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100033184, 10 belts per carton, 5 cartons per case
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 45179, Roloc Disc Pad TR, Medium 4 in 1/4-20 Internal, 7000045281
3M 26015, PPS Series 2.0 Adapter, Type S8, 12 mm Male, 1.0 mm Thread, 7100135931
3M 01328, Stikit Gold Film Disc Roll, 6 in, P220 grade, 7010308781, 75 discs per roll
3M 19768, Utility Cloth Sheet 314D, 9 in x 11 in P180 J-weight, 7000000356
Dynabrade 78174 2" Dia., Extra Coarse, NWN DynaBrite, TR Locking-Type Disc, 25/pack
Dynabrade 79126 3/4" W x 18" L 60 Grit DynaCut Premium Ceramic Belt, 50/pack
3M 86802, Cubitron II Stikit Film Disc 775L, 80+, 5 in x NH, Linered w/Tab, Die 500X, 7100048736, 250 per case
3M 95414, Lead Foil Tape 420, Dark Silver, 2 in x 36 yd, 6.8 mil, 7000001315
3M 10455, Cloth Sheet 481W, 220, 9 in x 11 in, 7010294811
3M 30137, Heavy Duty Canvas Wheel Masker, 20 inch, 7100145359, 4 per pack
3M 22396, Roloc Disc 361F, 36 YF-weight, TR, 1-1/2 in, Die R150S, 7000045091
Dynabrade 94960 1/4" Composite-Style Coupler, 1/4" Female
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095 
