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.

Standard Abrasives 700307, A/O Cross Pad, 8 PLY, 2 in x 2 in x 1/2 in, 8-32, 100, 7100105468
ACS Diamond Grinding Disc, 4-1/2" Dia. X 5/8"-11 Center Hub Thread, Type 29, 36 Grit
3M 45718, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 5 in x NH, D/F 5HL, Die 500FH, 7100113075
3M 14708, Heavy Duty Spray Adhesive 20, Clear, 16 fl oz Can (Net Wt 13.8 oz), 7100179437, 12/Case
Dynabrade 78587 1/4" Dia. x 2" W x 1/8" Center Hole, 60 Grit, 100/pack
3M 31959, 6450J, M125, 1" X 30", Type C, Pattern 18 Diamond Belts, 7100052712
Standard Abrasives 708751, PSA A/O Disc, 12 in x NH, 60, 7010370081
Dynabrade 51301 .5 hp Straight-Line Die Grinder
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
Dynabrade 95848 Dynabrade Gear Oil
3M 33175, Scotch-Brite Radial Bristle Brush Replacement Disc, T-S 50 Refill, 8 in, 7100138339, 70/Pack
3M™ 07011, Supplied Air Respirator Hose W-9435-50/07011(AAD), 7000005373, 1 EA/Case
3M 07926, Floor Surfacing Discs, 7 in x 7/8 in, 30 Grit, 7010401392
3M 15913, Scotch-Brite Roloc Disc High Strength, TR, 2 in X NH A Medium, 7000000710
3M 20932, PSA Cloth Disc 348D, 80 X-weight, 1 in x NH, Die 100N, 7000118914
ACS CX1250 Diamond Belt, 1/2" X 24" 74u
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 80510, Roloc Disc 777F, P120 YF-weight, TR, 1 in, Die R100N, 7000045622
3M 82238, Scotch-Weld Epoxy Adhesive 420, Off-White, Part B, 5 Gallon Drum(Pail), 7100001145
3M 21463, Marine Adhesive Sealant 5200, White, 5 Gallon Drum (Pail), 7010325698
3M 25777, Dry Layup Adhesive 1.0 09094, Red, 7000046595
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069 
