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.

3M 34578, Cubitron II Net Sheet Roll, 320+, 115 mm x 10 m, 7100247506, 6 Rolls/Case
3M 62615, Scotch-Weld Threadlocker TL90, Green, 10 mL Bottle, 7100039234, 10/case
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
3M 09413, Scotch-Brite Contour Surface Paint and Varnish Remover 9413NA, 7000052005
Dynabrade 51301 .5 hp Straight-Line Die Grinder
3M 62617, Scotch-Weld Threadlocker TL90, Green, 250 mL Bottle, 7100039235, 2/case
3M 13444, Finesse-it Microfinishing Film Disc Roll 268L, 9 Mic 3MIL, 1-3/8 in x NH, Scallop, Die 143S, 7000118207, 1000 discs per roll
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069 
