Durable and Dependable
We engineer 3M Fibre Disc 381C by adhering aluminum oxide mineral to a fibre backing. The closed coat construction on 3M Fibre Disc 381C means mineral grains cover nearly 100% of the backing, so the abrasive is durable under pressure. The stiff fibre backing is extremely durable, withstanding wear, while standing up to tough applications like beveling.
Tips for Optimal Use
Altogether, fiber discs are durable abrasive discs that 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. These discs may be used with portable tools, facilitating easier access with the workpiece. For optimal performance, the disc should be used with a face plate of the appropriate density for the application – a lighter density face plate for finer grade applications and a harder density face plate for more coarse grinding applications. Using the correct face plate for the application ensures that the abrasive mineral will re-sharpen, maximizing the life of the abrasive.
Good for General Purpose Metalworking
When it comes to our 3M Fibre Disc product offerings, we recommend operators choose the performance level suited to their unique project needs. 3M Fibre Disc 381C 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 the 3M Fibre Disc is applicable in many markets, as evidenced by its use in the marine and metalworking industries as well as in maintenance and repair operations. 3M Fibre Disc 381C is a great multi-purpose disc that’s good to have on hand.

3M 20909, PSA Cloth Disc 348D, 80 X-weight, 2 in x NH, Die 200P, 7000118873
3M 87674, High Intensity Prismatic Reflective Sheeting 3930DS White for Digital Printing, 36 in x 50 yds, 7100116216
3M 33439, Cubitron II File Belt, 33439, 60+, 10 mm x 330 mm (3/8 in x 13 in), 7100033194, 10 belts per carton, 5 cartons per case
Norton 66261127733 - 2" X 50 Yard 60 Grit Metalite™ Aluminum Oxide Cloth Roll, 1 Each
3M 64324, Foil Tape 3340, Silver, 72 mm x 45.7 m, 3.9 mil, 7010335734
Dynabrade 55064 3/8"-24 Female 5/8"-11 Male, 1" Length
3M 33443, Cubitron II File Belt, 36+, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100033184, 10 belts per carton, 5 cartons per case
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
3M 26130, PPS Series 2.0 Adapter, Type S35, 16 mm Female, 1.5 mm
Thread Stretched, 7100135926
Dynabrade 10040 Raptor Vac Pack Mobile Auto Vacuum System, 20 Gal. 120 V
3M 01875, Charge-Collection Solar Tape 3011, 2 mm x 1200 m, 7010312686
Standard Abrasives 707195, Aluminum Oxide Handy Roll, P80 J-weight, 2 in x 50 yd, 7100031626
Dynabrade 55501 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 3mm Collet
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
3M 10115, Synthetic Steel Wool Pads, #3 Coarse, 7000051986
3M 16556, Scotch-Brite Light Duty Hand Pad 6448B, HP-HP, 6 in x 9 in, 7010329300, 60 ea/Case
3M 76790, Roloc Disc 361F, 60 YF-weight, TS, 2 in, Die RS200P, 7010300088
3M 16585, Accuspray Atomizing Head, Clear, 1.8 mm, 7100078990
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Dynabrade 11395 Guide Wheel
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
ACS Flap Disc, Type 29 (Curved) Full Diamond 4-1/2 X 5/8-11 60M, 333.FD4.5-60/T29 
