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 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 26022, PPS Series 2.0 Adapter, Type S12, 10 mm Male, 1.0 mm Thread, 7100135943
3M 97421, Aluminum Foil Tape 3380, Silver, 72 mm x 45 m, 3.25 mil, 7010375681
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
Norton 66261014897 2" x 1/4" Bear-Tex NEX Rapid Blend AO Medium Grit TR (Type III) Non-Woven Wheel, 60 Each
Insize 1121-1501, DIGITAL INSIDE POINT C, 35-150mm/1.38-6", 6928640385056
ACS Diamond Cloth Belt, CX1250 1/2" X 18" 125U
3M 80770, Cloth Spiral Band 747D, 051144-80770-3, 3;2661869, 1 in x 1 in, 60 X-weight, 7100138165
Dynabrade 77772 5" Dia. x 7/8" Center Hole, 40 Grit, Type 27, Ceramic DynaCut Flap Disc, 10/pack
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
3M 57962, Scotch Detectable Buried Barricade Tape 412, CAUTION BURIED HIGH VOLTAGE CABLE BELOW, 3 in x 1000 ft, Red, 7000133220
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
3M 03738, Scotch-Brite Cut and Polish Unitized Wheel, CP-UW, 7A Medium, 3 in x 3/4 in x 3/8 in, 7010364917
3Mâ„¢ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
3M 19765, Utility Cloth Sheet 314D, 9 in x 11 in P280 J-weight, 7000000353
3M 81729, Disc Pad Face Plate Ribbed, 9 in Hard Black, 7000148244
3M 29353, Particulate Respirator 9502+N95, 7100240920, 500 ea/Case
3Mâ„¢ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 10115, Synthetic Steel Wool Pads, #3 Coarse, 7000051986
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 35124, Grippy Sanding Cloth Trial Kit, 7100230957
3M 40210, Cloth Spiral Band 341D, 80 X-weight 1 in x 1 in, 7100138142
ACS Flap Disc, Type 29 (Curved) Full Diamond 4-1/2 X 5/8-11 60M, 333.FD4.5-60/T29 
