Speed, Long Life, and Ease of Use
Engineered for faster cutting, sustained performance, durability and increased throughput, our 3M™ Cubitron™ II Roloc™ Fibre Discs 786C is a game changer, featuring our Precision-Shaped Grain technology.
About 3M™ Cubitron™ II and Precision-Shaped Grain
3M™ Cubitron™ II abrasive discs, cutoff wheels and file belts have raised the bar for high-performing abrasives. Cubitron™ abrasives feature our Precision-Shaped Grain (PSG) technology, which allows our engineers to control the geometry of the abrasive grain for a truly fast, efficient cut. Instead of simply crushing the abrasive into particles, 3M uses microreplication to uniformly size ceramic grains and precisely shape them into triangular structures – essentially, sharp peaks that slice, not plow, through paint and metal. These grains are electrostatically oriented on the abrasive surface for the most efficient cut and even wear. What’s more, PSG fractures during use to maintain sharp abrasive edges. The result: Cubitron™ II cuts 30% faster and lasts 2x longer than conventional ceramic abrasives.
Time-Saving Quick Change Attachment
Our 3M™Fibre Roloc™ Disc Quick Change Attachment System is convenient and saves time. Discs screw securely into the threaded mandrel without tools. Ideal for applications requiring frequent grade or disc size changes. For best results, use Fibre Roloc™ Discs with 3M™ Power Tools. 3M abrasives, accessories and power tools are optimized to work together and help you attain maximum productivity.
Recommended Applications
Choose the 3M™ Cubitron™ II Roloc™ Fibre Discs 786C for medium to heavy-duty metalworking such as weld grinding and clean-up, as well as edge chamfering, beveling, and paint removal processes.
- Clean and remove coatings
- Deburr metal
- Remove gaskets
- Polish and shape metal
- Remove oxidation, paint and rust
- Cut spot welds
- Strip paint to metal
- Slotted for cutting off weld and door skin removal
Tech Tip
Use 3M™ Disc Pad Face Plates – Red Ribbed – to optimize product life of Cubitron™ II Fibre Discs – grades 36+, 60+ and 80+.
A Portfolio of Abrasive Systems Solutions
From specialty abrasives designed for a highly specific purpose to versatile sheets, 3M provides an abrasive to accomplish your task or perfect your system. At 3M, we draw from a wealth of original technologies and breakthrough inventions to provide a broad portfolio of abrasives that shape, finish and polish with ease and precision.

Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
Dynabrade 95848 Dynabrade Gear Oil
Dynabrade 93381 Carbide Burr 12-Piece Burr Kit, 3mm Shank
3M™ 07010, Supplied Air Respirator Hose W-9435-25/07010(AAD), 25 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005374, 1 EA/Case
3M 71347, 641WY, 3" X 30", 220 Mesh, Diamond Cloth Belts, 7010534831
Dynabrade 95544 Gear Grease, 2.5oz. Tube
Dynabrade 96623 Raptor Vac Disposable Dust Collection Bags, 5/pack
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3M 08369, MSP Seam Sealer, White, 310 mL Flexpack, 7000045483, 6 per case
Dynabrade 51862 .4 hp Trim Router (Complete), 30,000 RPM, 1/4 Collet
Dynabrade 53280 7" (180 mm) Dia. Right-Angle Grinder, 2.8 HP, 8,500 RPM, 5/8"-11 Spindle
Dynabrade 14000 Dynafile Abrasive Belt Tool
Dynabrade 95541 Grease Gun
3M 45033, High Intensity Prismatic Reflective Digital Sheeting 3930UDS, White, 24 in x 50 yd, 1 Roll/Case, 7100282394
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
ACS Diamond Cloth Belt, CX1250 1/2" X 72" 125U
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
3M 19677, Scotch-Seal Industrial Sealant 800, Reddish Brown, 1 Gallon Drum, 7000000793, 4/Case
Dynabrade 15300 Dynafile III Abrasive Belt Tool
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
Air Turbine Tools 310RSV - 6mm Router Hand Tool Series with Brake, 30,000RPM, 33435
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
Dynabrade 55500 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 1/8" Collet
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 79127 3/4" W x 18" L 120 Grit DynaCut Premium Ceramic Belt, 50/pack
Air Turbine Tools 310RDM - 1/4" Router Hand Tool Series, 30,000RPM, 33432
Dynabrade 79126 3/4" W x 18" L 60 Grit DynaCut Premium Ceramic Belt, 50/pack
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
3M™ 37018, Supplied Air Respirator Vortex Cooling Assembly V-100/37018(AAD), 70070799013, 1 EA/Case
Dynabrade 40260 4-1/2" (114 mm) Dia. Electric Right Angle Depressed Center Wheel Grinder
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
3M 58298, Scotch-Weld PUR Applicator Swivel Connector, 7000046653
3M 29834, Sanding Screen, 100 Grit, 18 in x NH, 7100160819
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
Dynabrade 98265 3/8" Female Coupler with 3/8" Male Plug Assembly
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
3M 16553, Scotch-Brite Extra Duty Hand Pad 6444, 6 in x 9 in, 7000028548, 60/Case
Dynabrade 51301 .5 hp Straight-Line Die Grinder
3M 08017, Marine Grade Silicone Sealant, White, 3 oz Tube, 7000120479, 6/Case
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool 
