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 02590 Pinion- 1.18:1- M7 x 1 Thread.- 23.5 MD
Dynabrade 52213 .5 hp 7 Degree Offset Die Grinder, Front Exhaust, Short Shank, 24,000 RPM, 1/4" Collet
Dynabrade 97016 1/4" NPT Ball Swivel
Dynabrade 63210 36" (91 cm) W x 72" (183 cm) L Downdraft Sanding Table, 460 V (AC)
Dynabrade 94960 1/4" Composite-Style Coupler, 1/4" Female
Dynabrade 52615 5" (127mm) Dia. Right Angle Vacuum Cut-Off Wheel Tool
Dynabrade 53046 1/4" Drill Right Angle, .4 HP, Rear Exhaust, 12,000 RPM
Dynabrade 96623 Raptor Vac Disposable Dust Collection Bags, 5/pack
3M 04313, Vinyl Tape 471, Green, 2 in x 36 yd, 5.2 mil, 7000028855
Dynabrade X31V - 3" Dia. Cen-Vacuum Dynorbital® Mini Extreme Random Orbital Sander
Dynabrade 52561 4-1/2"-5" Dia. Right Angle Disc Sander, Rear Exhaust, 1 HP, 11,000 RPM, 5/8"-11 Thread
Dynabrade 91732 DynaMesh 6" 320 Grit Hook & Loop Discs, 50 per box
Dynabrade 91541 5" Dynacut Extreme Orange Premium Film Disc, 220 Grit, Hook & Loop, Vacuum Holes, 50/Box
Dynabrade 94858 25' Max Flow 10mm I.D. Air Hose Assembly, Male (1/4") / Male (1/4") Fitting Ends Included
Dynabrade 90078 2-3/4" W x 15-1/2" L 120 Grit A/O DynaCut Belt, 10/Pack
Dynabrade 78488 3" Dia. x 1-1/2", 1/4-20 Female Center Thread, A/O, 180 Grit, 10-Ply J-DynaCut Cross Pad, 100/pack
Dynabrade 91143 1/2" W x 18" L 40 Grit A/O DynaCut Belt, 50/pack
Dynabrade 12201 Stockade Reciprocating Filer
Dynabrade 80022 Dynamount Bench Mount (for Dynabelters)
Dynabrade 79982 5" Dia. x 320 Grit A/O Vacuum PSA DynaCut Disc, 100/Pack
Dynabrade 50284 9" Dia. Disc Backup Pad, Spiral-Face, Medium Density, 5/8"-11 Thread
Dynabrade 94315 Air Pressure Gauge
Dynabrade 91551 5" Dynacut Extreme Orange Premium Film Disc, 320 Grit, Hook & Loop, Non-Vacuum, 50/Box
Dynabrade 50767 Spring Pin
Dynabrade 56815 5" Dia. Non-Vacuum Dynorbital Supreme Random Orbital Sander, 3/16 Orbit
Standard Abrasives 845611, Surface Conditioning FE Disc, 5 in CRS, 7000046757
Dynabrade 78160 3/4" Dia. x 80 Grit S/C Non-Vacuum PSA DynaCut Disc 75/pack
Dynabrade 79041 1" W x 18" L 120 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 93334 Carbide Burr, 3/8" Dia., SD-3 D/C Burr, Ball, 5/16" Flute L, 1/4" Shank
Dynabrade 53282 9" (180 mm) Dia. Right-Angle Grinder, 2.8 HP, 6,500 RPM, 5/8"-11 Spindle
Dynabrade 58039 1-1/4" Dia. Right Angle Mini-Orbital Sander, 12K RPM, .4 HP, Rear Exhaust
Dynabrade 78776 3/8" x 1-1/2"-W176 Dynacut Cotton Fibre Fine DeBurring Mounted Point, 80MTX, 10/pack
Dynabrade 82457 5" Dia. x 120 Grit A/O PSA Filmbac DynaCut Disc, 100/Box
Dynabrade 53532 Cone or Plug Grinder (Double Extension), 18,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 78125 3" Dia., Very Fine, NWN DynaBrite, TR Locking-Type Disc, 25/pack 
