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 727399, Buff and Blend Cross Buff HS, A/O Medium, 2 in x 3/4 in x 2 Ply x 1/4-20, 7000047137
Standard Abrasives 725014, Buff and Blend Cross Buff GP, A/O Coarse, 1-1/2 in x 1/2 in x 2 Ply x 8-32, 7000121820
Standard Abrasives 725011, Buff and Blend Cross Buff HP, A/O VFN, 3/4 in x 3/8 in x 2 Ply x 8-32, 7000047134
3M 89613, Fibre Disc 782C TN Quick Change, 4-1/2 in 80+, 7100099269
3M 89591, Fibre Disc 782C, 36+, 7 in x 7/8 in, Die 700BB, 7100099271
3M 36507, Green Corps Fibre Disc 36507, 5 in x 7/8 in, 40, 7100225415, 20 Discs/Bag
Standard Abrasives 727459, Buff and Blend Cross Buff HP, A/O VFN, 1.25 in x 1/2 in x 3 Ply x 8-32, 7100017838
3M 27655, Cubitron II Fibre Disc 987C, 60+, 7 in x 7/8 in, Die 700BB, 7000148158
3M 33389, Cubitron II Roloc Fibre Disc 786C, 3 in (75 mm), 36+, 7100033190, 15 discs per carton
3M 01430, Disc Kut 1430, 3 in, 36, 7010328870, 20/Carton
3M 27642, Cubitron II Fibre Disc 982C, 80+, TN Quick Change, 4-1/2 in, Die TN450E, 7010326768
3M 80774, Cloth Spiral Band 747D, 80 X-weight, 1 in x 1 in, 7100138166
3M 01745, Fibre Disc 381C, 16, 7 in x 7/8 in, Die 700BB, 7000144089
3M 27400, Cubitron II Fibre Disc 982C, 36+, 4-1/2 in x 7/8 in, Die 450E, 7000148153
3M 33377, Cubitron II Roloc Fibre Disc 786C, 2 in (50 mm), 36+, 7100033187, 15 discs per carton
3M 86892, Cubitron II Roloc Fibre Disc 987C, TR, 3 in, Trial Pack, 7100050294
3M 06839, Booth Coating, 1 Galllon, 7000028421
3M 65086, Scotch-Brite Diamond Wheel, 6" x 1" x 1" 645DC, 7010329878
3M 19677, Scotch-Seal Industrial Sealant 800, Reddish Brown, 1 Gallon Drum, 7000000793, 4/Case
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095 
