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 32953, PSA A/O Disc, 711880, 2 in x NH, 60, 7010310798
Dynabrade 90368 3/4" W x 34" L 80 Grit A/O DynaCut Belt, 50/pack
Dynabrade 79109 1/2" W x 12" L 80 Grit DynaCut Premium Ceramic Belts, 50/pack
Dynabrade 98265 3/8" Female Coupler with 3/8" Male Plug Assembly
Dynabrade 64002 SuperFinisher, 230 Volts (AC), 1 Phase, 50 Hz
Dynabrade 56205 5" Dia. Non-Vacuum Disc Pad, Vinyl-Face
Dynabrade 52577 3" (76 mm) Dia. Straight-Line 6" (152 mm) Extension Cut-Off Wheel Tool, Rear Exhaust, 1 HP, 18,000 RPM, 3/8"-24 Spindle
3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case
Dynabrade 15300 Dynafile III Abrasive Belt Tool
Dynabrade 13300 Mini-Dynisher Finishing Tool, .4 HP, Rear Exhaust, 3,200 RPM, 5/8" Arbor
Dynabrade 10040 Raptor Vac Pack Mobile Auto Vacuum System, 20 Gal. 120 V
Dynabrade 95965 Water Flow Adjustment
Dynabrade 95848 Dynabrade Gear Oil
Dynabrade 21457 ND3071, Red Plastic Cover
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 79108 1/2" W x 12" L 60 Grit DynaCut Premium Ceramic Belts, 50/pack
Dynabrade 52931 1/4" Drill, .4 HP, Rear Exhaust, 500 RPM
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
Dynabrade 14000 Dynafile Abrasive Belt Tool
Dynabrade 92151 1/2" W x 18" L 120 Grit Ceramic DynaCut Scalloped Edge Belt, 50/pack
Dynabrade 92086 3" Dia. x 36 Grit Ceramic Non-Vacuum DynaCut Locking-Type Disc, 25/pack
Dynabrade 92150 1/2" W x 18" L 80 Grit Ceramic DynaCut Scalloped Edge Belt, 50/pack
Dynabrade 79808 DynaBolt AO 4" x .035" x 3/8" T1 Cut-off Wheel, Box of 10 Discs
Dynabrade 92115 1/2" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 95541 Grease Gun
Dynabrade 43515 .4 hp 6" (152 mm) Extension Die Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade X51 5" (127 mm) Dia. Non-Vacuum Dynorbital Extreme Random Orbital Sander, .3 HP, 12,000 RPM, 3/16" Orbit, PSA
Dynabrade 11231 Contact Arm Ass'y, 3/4" Dia. x 1/2" W, Rubber Wheel, with 1/2" W Platen
Dynabrade 13511 Dynastraight 6" (152 mm) Extension Finishing Tool, 1 HP, Rear Exhaust, 1,800 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 78020 1/2" W x 18" L Medium NWN DynaBrite Belt, 10/pack
Dynabrade 79173 2" W x 30" L 60 Grit Ceramic DynaCut Belt, 10/pack
Dynabrade 78021 1/2" W x 18" L Very Fine NWN DynaBrite Belt, 10/pack
Dynabrade 53249 9" Dia. Type 27 Vertical Depressed Center Wheel Grinder, 3 HP, 6,000 RPM, 5/8"-11 Spindle
Dynabrade 79152 1" W x 24" L 80 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 54325 5" Dia. Non-Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade 52775 3/8" Reversible Drill, .5 HP, Rear Exhaust, 1,800 RPM
Dynabrade 91638 2" W x 36" L 80 Grit A/O DynaCut Belt, 10/pack
3M 62615, Scotch-Weld Threadlocker TL90, Green, 10 mL Bottle, 7100039234, 10/case
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095 
