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 83759, High Performance Industrial Plastic Adhesive 4693, Light Amber, 1 Quart Can, 7000046574, 12/case
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
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Insize 7341-3S, PIN GAGE HANDLE (with 1pc handle and 7 pairs of collecting bushes), .131-.180", 6928640370588
Dynabrade 93658 3" Dia. x 3/8" CH 40/50 Grit Gulleted/Slotted Diamond Cut-Off Wheel
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
Standard Abrasives 541151, Quick Change TS P.A.R.T. #21 Disc Mandrel, 5/8 in TA4 (PILOT), 7000121723
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Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
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Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
3M 36876, Self-Stick Liquid Protection Fabric, Blue, 4 in x 300 ft perroll, 7100169348, 6 Rolls Per Pack
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
ACS CX1250 Diamond Belt, 1/2" X 24" 125u
3M 85492, Scotch Foil Tape 3311-10A, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7010383663
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3M 85700, Wetordry Finesse-it Paper Disc Roll 401Q, 2500 A-weight, 1-3/8 in x NH, Scallop, Die 143S, 7000044713, 1000 discs per roll
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3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
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