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.

Dynabrade 51330 .7 hp Router, Front Exhaust, 20,000 RPM, 3/8"-24 Spindle
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 79152 1" W x 24" L 80 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 78710 5/16" x 5/8"-B53 Dynacut A/O Mounted Point, 5/pack
3M 06560, Marine Adhesive Sealant 4200FC Fast Cure, White, 295 mL Cartridge, 7100006227, 12/Case
Dynabrade 51740 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet, with Mount Stem
Air Turbine Tools 310RDM - 1/4" Router Hand Tool Series, 30,000RPM, 33432
Air Turbine Tools 310RSV - 1/4" Router Hand Tool Series, 25,000RPM, 33420
3M 19764, Utility Cloth Sheet 314D, 9 in x 11 in P320 J-weight, 7000000352
Dynabrade 54972 Vane Set (5pk)
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
Dynabrade 90872 2" Dia. Coarse NWN DynaBrite Locking-Type Disc, 25/pack
3M 09555, Scotch-Brite EXL Deburring Wheel, XL-WL, 8S Fine, 12 in x 2 in x 5 in, 7000148257
3M 49056, Polyurethane Adhesive Sealant 560, White, 310 mL Cartridge, 7000000945, 12/case
Dynabrade 51702 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 60,000 RPM, 3/32" Collet
3M 05009, Utility Cloth Roll 211K, 100 J-weight, 1 in x 50 yd, Full-flex, 7100016843
Dynabrade 60052 .1 hp Straight-Line Quick-Change Pencil Grinder, Rear Exhaust, 35,000 RPM, 3/32" Collet
Insize 6301, MICROMETER STAND, 6928640307300
3M 45194, Disc Pad Face Plate 45194, 7 in Soft White, 7000120522
Dynabrade 51629 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 1/8" Collet
Standard Abrasives 707195, Aluminum Oxide Handy Roll, P80 J-weight, 2 in x 50 yd, 7100031626
Dynabrade 95541 Grease Gun
Dynabrade 78380 3" Dia. x 1/2", Dyna Premium Rapid Strip TR Disc, 25/pack
Standard Abrasives 701217, Aluminum Oxide Spiral Band, 60, 1 in x 1 in, 7100138185
ACS Diamond Cloth Belt, CX1250 1/4" X 24" 75U
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M 57173, Temflex Cotton Friction Tape 1755, 3/4 in x 60 ft, Black, 7000058870
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
3M 06520, Marine Adhesive Sealant 5200FC Fast Cure, White, 295 mL Cartridge, 7000000629, 12/Case
3M 26618, Accuspray Atomizing Head Refill Pack for 3M PPS Series 2.0,Clear, 1.8 mm, 7100141416 (4 Nozzles/Kit)
Dynabrade 91428 1/2" W x 12" L 60 Grit A/O DynaCut Belt, 50/pack
Dynabrade 78294 3" Dia. x 2A M Medium Type R Unitized Locking-Type Disc, 25/pack
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3Mâ„¢ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case 
