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

Dynabrade 96243 Bearing Press Tool
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
ACS Flap Disc, Type 29 (Curved) Full Diamond 4-1/2 X 5/8-11 60M, 333.FD4.5-60/T29
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
Dynabrade 96247 Repair Collar-1-3/16" Bore
3M 03143, Vinyl Tape 471, Green, 1/2 in x 36 yd, 5.2 mil, 7000047477
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Dynabrade 14360 Pneumatic Pipe Belt Finisher
Insize 7261-150, INSIDE SPRING CALIPER, 6", 6928640319624
Dynabrade 59459 Drop-In Motor Repair Kit
3M 03134, Vinyl Tape 471, White, 1/2 in x 36 yd, 5.2 mil, 7000047472
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
Dynabrade 51301 .5 hp Straight-Line Die Grinder
Dynabrade 96250 Repair Collar-2-1/4" Bore
Dynabrade 96342 Hex Key Set
Dynabrade 96107 Motor Tune-Up Kit
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 04312, Vinyl Tape 471, Orange, 2 in x 36 yd, 5.2 mil, 7000028854
3M 43177, General Purpose Vinyl Tape 764, Yellow, 1 in x 36 yd, 5 mil, 7000123863
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 43426, General Purpose Vinyl Tape 764, Red, 3 in x 36 yd, 5 mil, 7000123885
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
Dynabrade 96249 Repair Collar-1-15/16" Bore
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated 
