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 51003, Surface Protection Fabric 14 in x 50 ft, 7100223608
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
ACS Diamond Cloth Belt, CX1250 1/2" X 18" 125U
Dynabrade 51811 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 1/16" Collet
3M 87429, Final Finishing Pads 10199NA4PK, 3 3/4 in x 6 in x 5/8 in, Replaces 0000 Steel Wool, 7100096075, 4 pads per pack
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
3M 50216, Temflex Cotton Friction Tape 1755, 3/4 in x 82-1/2 ft, Black, 7010297809
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
Dynabrade 78294 3" Dia. x 2A M Medium Type R Unitized Locking-Type Disc, 25/pack
Standard Abrasives 710479, A/O Straight Cartridge Roll, 1/2 in x 1-1/2 in x 1/8 in 80, 7100085870
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
Dynabrade 51700 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
3M 10120, Synthetic Steel Wool Pads, 10120NA, #000 Extra Fine, 7000126149
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956
Insize 1120-150A, ELECTRONIC INSIDE GROOVE CALIPER, 22-150mm, 6928640302220
3M 20932, PSA Cloth Disc 348D, 80 X-weight, 1 in x NH, Die 100N, 7000118914
3M 02405, Utility Cloth Sheet 211K, 9 in x 11 in 220 J-weight, 7010299775
3M 82598, Hot Melt Adhesive 3764 PG, Clear, 1 in x 3 in, 7000000884, 22 LBS/Case
3M 81356, Venture Tape White Aluminum Foil Tape 1558HT, 72 mm a 45.7 m, 5.4 mil, 7010335933
Standard Abrasives 713159, Aluminum Oxide Handy Roll, P120 J-weight, 1-1/2 in x 50 yd, 7010290409
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
Dynabrade 53249 9" Dia. Type 27 Vertical Depressed Center Wheel Grinder, 3 HP, 6,000 RPM, 5/8"-11 Spindle
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
Dynabrade 78128 3" Dia. Coarse NWN VT DynaBrite Locking-Type Disc, 25/pack
3M 06524, Scotch Steel Gray Masking Paper, 06524, 24 in x 1000 ft, 1 per case, 7000045442
Dynabrade 51812 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 3/32" Collet
3M 85492, Scotch Foil Tape 3311-10A, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7010383663
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
3M 14895, Cloth Belt 777F, 80 YF-weight, 1 in x 42 in, Film-lok, Single-flex, 7010299926, 200 per case
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
ACS CX1250 Diamond Belt, 1/2" X 24" 125u
3M 82618, Rubber and Vinyl Spray Adhesive 80, Yellow, 24 fl oz Can (Net Wt 19 oz), 7000028604, 6/Case
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
3Mâ„¢ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 19769, Utility Cloth Sheet 314D, 9 in x 11 in P150 J-weight, 7000000357
3M 20967, Portable Utility Cloth Roll 314D, P240 J-weight, 1 in x 20 yd, 7010290604
3M 97419, Aluminum Foil Tape 3380, Silver, 48 mm x 45 m, 3.25 mil, 7000049613
3M 19795, Utility Cloth Roll 314D, P400 J-weight, 1-1/2 in x 20 yd, 7100081717
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 20909, PSA Cloth Disc 348D, 80 X-weight, 2 in x NH, Die 200P, 7000118873
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068 
