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 863299, Quick Change TR S/C Unitized Wheel, 632, 2 in x 1/4 in, 7010330149
Standard Abrasives 863299, Quick Change TR S/C Unitized Wheel, 632, 2 in x 1/4 in, 7010330149						 3M 05442, Stikit Soft Hand Block, 2-3/4 x 5 in, 7000045435
3M 05442, Stikit Soft Hand Block, 2-3/4 x 5 in, 7000045435						 3M 62820, Adhesive Sealant 760 UV, Gray, 600 mL Sausage Pack, 7000046611, 12/Case
3M 62820, Adhesive Sealant 760 UV, Gray, 600 mL Sausage Pack, 7000046611, 12/Case						 3M 34573, Cubitron II Net Sheet Roll, 120+, 115 mm x 10 m, 7100247507, 6 Rolls/Case
3M 34573, Cubitron II Net Sheet Roll, 120+, 115 mm x 10 m, 7100247507, 6 Rolls/Case						 3M 06742, Overspray Protective Sheeting, 20 ft x 250 ft, 7000120043
3M 06742, Overspray Protective Sheeting, 20 ft x 250 ft, 7000120043						 3M 72600, 663FC 1/2" X 30", 70u Diamond Trizact Belt, 7100206529
3M 72600, 663FC 1/2" X 30", 70u Diamond Trizact Belt, 7100206529						 3M 34564, Cubitron II Net Sheet Roll, 180+, 70 mm x 10 m, 7100247499, 6 Rolls/Case
3M 34564, Cubitron II Net Sheet Roll, 180+, 70 mm x 10 m, 7100247499, 6 Rolls/Case						 3M 27490, 641WY, 3" X 30", 1200 Mesh, Diamond Cloth Belts, 7010508907
3M 27490, 641WY, 3" X 30", 1200 Mesh, Diamond Cloth Belts, 7010508907						 3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092						 3M 30190, Trizact Hookit Foam Sheet, 2-3/4 in x 5-1/2 in (70 mm x 140 mm), 3000 grade, 7100072763, 5 sheets per pack
3M 30190, Trizact Hookit Foam Sheet, 2-3/4 in x 5-1/2 in (70 mm x 140 mm), 3000 grade, 7100072763, 5 sheets per pack						 3M 66626, Cloth Belt 341D, 50 X-weight, 4 in x 36 in, Fabri-lok, Single-flex, 7010308385, 25 per case
3M 66626, Cloth Belt 341D, 50 X-weight, 4 in x 36 in, Fabri-lok, Single-flex, 7010308385, 25 per case						 3M 27760, Hookit Microfinishing Film Disc 366L, 30 Mic 3MIL, Type D, 6 in x NH, Die 600Z, 7100049207, 500 per case
3M 27760, Hookit Microfinishing Film Disc 366L, 30 Mic 3MIL, Type D, 6 in x NH, Die 600Z, 7100049207, 500 per case						 Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool						 Dynabrade 92187 1" W x 30" L 80 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 92187 1" W x 30" L 80 Grit A/Z DynaCut Belt, 50/pack						 3M 34566, Cubitron II Net Sheet Roll, 240+, 70 mm x 10 m, 7100247511, 6 Rolls/Case
3M 34566, Cubitron II Net Sheet Roll, 240+, 70 mm x 10 m, 7100247511, 6 Rolls/Case						 3M 02590, Stikit Gold Sheet Roll, P400, 2-3/4 in x 45 yd, 7000028254
3M 02590, Stikit Gold Sheet Roll, P400, 2-3/4 in x 45 yd, 7000028254						 3M 26312, PPS Series 2.0 Spray Cup System Kit, Midi (13.5 oz, 400 mL),
125 Micron Filter, 7100169346
3M 26312, PPS Series 2.0 Spray Cup System Kit, Midi (13.5 oz, 400 mL),
125 Micron Filter, 7100169346						 3M 71512, Cloth Belt 340D, 50 X-weight, 3 in x 18 in, Fabri-lok, Single-flex, 7010294780, 25 per case
3M 71512, Cloth Belt 340D, 50 X-weight, 3 in x 18 in, Fabri-lok, Single-flex, 7010294780, 25 per case						 3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095						 3M 85391, Cloth Belt 963G, 50 YN-weight, 2 in x 72 in, Film-lok, L-flex, 7010299930, 50 per case
3M 85391, Cloth Belt 963G, 50 YN-weight, 2 in x 72 in, Film-lok, L-flex, 7010299930, 50 per case						 Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)						 3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090						 Insize 4706-1150, 120? SQUARE, 5.9x5.9", 6928640318276
Insize 4706-1150, 120? SQUARE, 5.9x5.9", 6928640318276						 3M 34562, Cubitron II Net Sheet Roll, 120+, 70 mm x 10 m, 7100247498, 6 Rolls/Case
3M 34562, Cubitron II Net Sheet Roll, 120+, 70 mm x 10 m, 7100247498, 6 Rolls/Case						 3M 16582, Accuspray Atomizing Head, Blue, 1.2 mm, 7010363219
3M 16582, Accuspray Atomizing Head, Blue, 1.2 mm, 7010363219						 Norton 66623325035 - 2" 120 Grit Fine Grade Aluminum Oxide Vortex Rapid Prep Green TR Non-Woven Surface Preparation Disc, 50 Each
Norton 66623325035 - 2" 120 Grit Fine Grade Aluminum Oxide Vortex Rapid Prep Green TR Non-Woven Surface Preparation Disc, 50 Each						 Standard Abrasives 713066, PSA A/O Disc, 8 in x NH, 60, 7010370082
Standard Abrasives 713066, PSA A/O Disc, 8 in x NH, 60, 7010370082						 3M 22971, Disc Holder Adapter 9, 5/8-11 External M10-1.25 Internal, 7000046094
3M 22971, Disc Holder Adapter 9, 5/8-11 External M10-1.25 Internal, 7000046094						 3M 34554, Cubitron II Net Sheet Roll, 220+, 80 mm x 10 m, 7100247496, 6 Rolls/Case
3M 34554, Cubitron II Net Sheet Roll, 220+, 80 mm x 10 m, 7100247496, 6 Rolls/Case						 3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100						

 
				 
				 
				 
				