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.

3M 16580, Accuspray ONE Spray Gun System with Standard PPS, 7100099202
Dynabrade 91428 1/2" W x 12" L 60 Grit A/O DynaCut Belt, 50/pack
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
3M 96673, Glass Cloth Tape 398FR, White, 3 in x 36 yd, 7 mil, 7000001301
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 66165, Wind Protection Tape Edge Sealer W2600, 50 ml (1.7 fluid ounce), 7100008766, 12/Case
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
Standard Abrasives 727094, Surface Conditioning Band, 1-1/2 in x 1-1/2in VFN, 7010368749
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
Dynabrade 53249 9" Dia. Type 27 Vertical Depressed Center Wheel Grinder, 3 HP, 6,000 RPM, 5/8"-11 Spindle
Standard Abrasives 704624, Spiral Band, 1-1/2 in x 1-1/2 in 36, 7010330726
3M 40241, Cloth Spiral Band 341D, 3/4 in x 1-1/2 in, 80 X-weight, 7100093316
Standard Abrasives 36449 Surface Conditioning FE Belt 885031, 3-1/2 x 15-1/2 in MED, 7000122074
3M 34118, 663FC, 2" X 120", 70u, Diamond Trizact Belt 7010509077
3M 26578, Accuspray ONE Pro Spray Gun Kit for PPS Series 2.0, 7100158715
ACS CX1250 Diamond Belt, 1/2" X 24" 20u
Standard Abrasives 78509, Ceramic Pro Type 27 Flap Disc, 645103, 4-1/2 in x 5/8-11 40 Y-weight, 7010310618, 10 per case
3M 20272, Neoprene Contact Adhesive 10, Light Yellow, 1 Quart Can, 7100011456, 12/case
3M 08301, Ultrapro Autobody Sealant, 08301, Tan, 5 oz Tube, 7100142901, 6 per case
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052 
