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 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094						 3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737						 Dynabrade 91425 1/4" W x 12" L 60 Grit A/O DynaCut Belt, 50/pack
Dynabrade 91425 1/4" W x 12" L 60 Grit A/O DynaCut Belt, 50/pack						 3M 29834, Sanding Screen, 100 Grit, 18 in x NH, 7100160819
3M 29834, Sanding Screen, 100 Grit, 18 in x NH, 7100160819						 Dynabrade 79152 1" W x 24" L 80 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 79152 1" W x 24" L 80 Grit DynaCut Premium Ceramic Belt, 50/pack						 3M 29829, Sanding Screen, 80 Grit, 19 in x NH, 7100160252
3M 29829, Sanding Screen, 80 Grit, 19 in x NH, 7100160252						 3M 29902, Sanding Screen, 150 Grit, 12 in x 18 in, 7100160763
3M 29902, Sanding Screen, 150 Grit, 12 in x 18 in, 7100160763						 3M 29821, Sanding Screen, 150 Grit, 20 in x NH, 7100160254
3M 29821, Sanding Screen, 150 Grit, 20 in x NH, 7100160254						 Dynabrade 51633 .1 hp Straight-Line Extension Pencil Grinder, Central Vacuum, 1/8" Collet
Dynabrade 51633 .1 hp Straight-Line Extension Pencil Grinder, Central Vacuum, 1/8" Collet						 3M 29847, Sanding Screen, 60 grit 16 x NH, 7100160824
3M 29847, Sanding Screen, 60 grit 16 x NH, 7100160824						 3M 10204, Drywall Sanding Sheets 10204-A, 4-3/16 in x 11-1/4 in, M-127, 100D grit, 7010316227
3M 10204, Drywall Sanding Sheets 10204-A, 4-3/16 in x 11-1/4 in, M-127, 100D grit, 7010316227						 3M 29825, Sanding Screen, 60 Grit, 20 in x NH, 7100160253
3M 29825, Sanding Screen, 60 Grit, 20 in x NH, 7100160253						 3M 29881, Sanding Screen, 220 grit 17 in x NH, 220 Grit, 7100160816
3M 29881, Sanding Screen, 220 grit 17 in x NH, 220 Grit, 7100160816						 3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102						

 
				 
				