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.

Insize 4809, U.S. STAND SHEET METAL GAGE, 0-36(.3125~.0070"), 6928640330162
3M 20931, PSA Cloth Disc 348D, P100 X-weight, 1 in x NH, Die 100N, 7000118915
3M 26016, PPS Series 2.0 Adapter, Type S9, 16 mm Male, 1.5 mm Thread, 7100135330
3M 76750, Roloc Disc 777F, 60 YF-weight, TS, 2 in, Die RS200P, 7010299188
3M 36882, Self-Stick Liquid Protection Fabric, Blue, 56 in x 300 ft, 7100169350
3M 97419, Aluminum Foil Tape 3380, Silver, 48 mm x 45 m, 3.25 mil, 7000049613
Standard Abrasives 42655, A/O Flap Wheel 624406, 2-1/2 in x 1 in x 1/4-20 in 80, 7010369118, 10 per case
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
3M 85492, Scotch Foil Tape 3311-10A, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7010383663
Dynabrade 79151 1" W x 24" L 60 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 02084 Angle Housing Assembly,Steel, Rear Exhaust
3M 88869, PSA Cloth Disc 777F, 36 YF-weight, 12 in x NH, Die 1200B, 7000120240
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
Standard Abrasives 706317, A/O Straight Cartridge Roll, 1/4 in x 1 in x 1/8 in 100, 7100080010
3M 76625, Roloc Disc 777F, 80 YF-weight, TR, 1 in, Die R100N, 7000045621
Standard Abrasives 850034, Unitized Wheel Steel Screw Mandrel, 7/8 in x 1/4 in Shank, 7000121879
3M 10118, Synthetic Steel Wool Pads, 10118NA, #0 Fine, 7000126148
3M 96673, Glass Cloth Tape 398FR, White, 3 in x 36 yd, 7 mil, 7000001301 
