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 00705, Interam Stainless Steel Foil Tape T-65, 4 in x 100 ft, 7100024280
Dynabrade 51301 .5 hp Straight-Line Die Grinder
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case
3M 21463, Marine Adhesive Sealant 5200, White, 5 Gallon Drum (Pail), 7010325698
3M 76624, Roloc Disc 777F, 60 YF-weight, TR, 1 in, Die R100N, 7000045620
3M 42824, Electrically Conductive Single-Sided Tape 5113SFT-50, Grey, 105 mm x 10 m, 8 Rolls/Case, 7100315005
3M 35124, Grippy Sanding Cloth Trial Kit, 7100230957
ACS Diamond Cloth Belt, CX1250 3" X 30" 75U
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
Dynabrade 51811 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 1/16" Collet
Dynabrade 91166 1/2" W x 13" L 80 Grit A/O DynaCut Belt, 50/pack
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 54358, Particulate Respirator 8247, R95, with Nuisance Level, Organic Vapor Relief, 7000002060, 120 EA/Case
3M 25125, Scotch-Weld Threadlocker TL71, Red, 1 mL Pipette, 7010330204, 100/case
3M 20905, PSA Cloth Disc 348D, P180 X-weight, 2 in x NH, Die 200P, 7000118876
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
3M 17094, Versaflo Hood Assembly with Inner Shroud & Premium Head Suspension S-657, 7000002348, 1 EA/Case
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
Dynabrade 59339 Vacuum Cuff, 1", w/Groove
3M 23897, Cloth Belt 777F, 60 YF-weight, 1 in x 18 in, Fabri-lok, Full-flex, 7010307894, 200 per case
Dynabrade 14000 Dynafile Abrasive Belt Tool
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
3M 20910, PSA Cloth Disc 348D, 60 X-weight, 2 in x NH, Die 200P, 7000118872
3M 41531, Scotch-Weld Epoxy Adhesive 420, Black, Part B, 5 Gallon Drum (Pail), 7000000827
3M 55065, Cubitron II Cloth Belt 984F, 36+ YF-weight, 3/4 in x 20-1/2 in, Fabri-lok, Single-flex, 7000148169, 200 per case
3M 70894, 641WY 1/2" X 24", 100 Mesh Diamond Cloth Belt, 7010533228
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
3M 77408, Cloth Belt 777F, 50 YF-weight, 1/2 in x 24 in, Fabri-lok, Single-flex, 7000118438, 200 per case
Standard Abrasives 722809, PSA A/O Extra Disc, 5 in x NH, 60, 7010368721
3M 85492, Scotch Foil Tape 3311, Silver, 2 in x 10 yd, 3.6 mil, 2MMX1200M, 7010334860
3M 25678, Scotch-Brite EXL Unitized Wheel, XL-UW, 2S Fine, 6 in x 1/4 in x 3/4 in, 7000120982
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 36516, Green Corps Abrasive File Belt, 40 grit, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100225352, 20 Belts Per Carton, 5 Cartons Per Case
3M 14559, Roloc Disc 361F, P150 XF-weight, TR, 2 in, Die R200P, 7000119021
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
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 16556, Scotch-Brite Light Duty Hand Pad 6448B, HP-HP, 6 in x 9 in, 7010329300, 60 ea/Case
3M™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
3M 05783, Hookit Pad D/F, 8 in x 5 bolt hole, 7000119884
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
Dynabrade 14360 Pneumatic Pipe Belt Finisher
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC) 
