Durable and Dependable
We engineer 3M Fibre 501C by adhering alumina-zirconia mineral to a fibre backing using resin. The closed coat construction on 3M Fibre 501C means mineral grains cover nearly 100% of the backing. The stiff fibre backing is extremely durable – vulcanized, hardened and condensed prior to being coated with mineral. It withstands wear and tends not to yield or deflect when run, which helps the abrasive stay strong, especially when grinding and finishing on edges.
Tips for Optimal Use
Altogether, fiber abrasives are rigid and deliver a fast cut for grinding and weld removal, and they come in a range of sizes to correspond to large or small welds. Fiber discs also work well for blending (creating a smooth surface after weld removal) and provide a consistent finish over the workpiece. This fibre can be cut to fit a variety of portable tools, facilitating easier access with the workpiece.
Good for General Purpose Metalworking
When it comes to our 3M Fibre product offerings, we recommend operators choose the performance level suited to their unique project needs. 3M Fibre 501C offers an economical solution for a general purpose metalworking disc, because it can perform well on a variety of projects without sacrificing performance. Given its versatility, you’ll find that 3M Fibre is applicable in many markets. As evidenced by its use in the marine, metalworking and maintenance repair operation industries, its a great multi-purpose disc that’s good to have on hand.

Dynabrade X51 5" (127 mm) Dia. Non-Vacuum Dynorbital Extreme Random Orbital Sander, .3 HP, 12,000 RPM, 3/16" Orbit, PSA
Dynabrade 80025 Load Cell
Dynabrade 40750 Carbon Brush Set
Dynabrade 78704 1" x 3-48 Female Center Thread, Coarse, Dynabrite Surface Conditioning Eyelet Star, 50/pack
3M 10299, Scotch Vinyl Color Coding Electrical Tape 35, 1/2 in x 20 ft, Brown, 7000132638
Dynabrade 64905 Fixed Speed Versatility Grinder, 1.5 hp, 230 V (AC), 1 Phase, 50/60 Hz, 5,400 SFPM, for 1/4"-2" W x 72" L (6-51 mm x 122 cm) Belts
Dynabrade 58044 3" Dia. Vacuum Dynafine Round Disc Pad, Vinyl-Face
Dynabrade 78116 3/4" W x 34" L Medium NWN DynaBrite Belt, 10/pack
Dynabrade 11129 3/4" W x 7" L Thin Platen Pad 5-Pkg.
Dynabrade 80459 HEPA13 Filter
Dynabrade 93172 4" Dia. X 1/4" Dia. Shank, 320 Grit, A/O, Spindle-Mount Sanding Star
Dynabrade 91167 1/2" W x 13" L 120 Grit A/O DynaCut Belt, 50/pack
Dynabrade 50771 Shroud-3"
Dynabrade 49430 Mini Angle Head Drill, .4 HP, Rear Exhaust, 3,200 RPM, 1/4"-28 Female Thread
Dynabrade 78742 1/8" x 3/8"-B97 DynaFire A/O Mounted Point, Vitrified, 5/pack
Dynabrade 40321 Dynafile II Abrasive Belt Tool Versatility Kit
Dynabrade X61 6" (152 mm) Dia. Non-Vacuum Dynorbital Extreme Random Orbital Sander, .3 HP, 12,000 RPM, 3/16" Orbit, PSA
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy. 
