Faster Cut, Longer Life
Featuring our Precision Shaped Grain (PSG) technology, the 3M™ Cubitron™ II Flap Discs is engineered for faster cut, longer disc life and a better finish on a range of heavy-duty jobs in collision repair. This 4-1/2” disc combines PSG with a flexible overlapping flap design that allows for grinding and blending in one – you can use fewer discs to complete the same amount of work.
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. 3M Cubitron II 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. It also allows the disc to run cooler and require less pressure than other conventional ceramic abrasives, excellent for lighter weight materials. 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: 3M Cubitron II cuts 30% faster and lasts 2x longer than conventional ceramic abrasives.
Tough Grinding and Finer Finish Combined
Durable Y-weight polyester backing on the 3M Cubitron II Flap Discs delivers controlled, even wear for low to medium-high pressure applications. Fibre-reinforced flaps radiate from a central hub and allow for maximum material loading onto the cutting surface. As the overlapping layers of the flaps wear away, they continuously expose fresh ceramic abrasive for a fast, consistent cut. The cushioning of the flaps combined with our super-sharp PSG abrasive grinds effectively yet creates a smooth finish. Under normal conditions, our flap discs grind and blend in one step to provide a finish that’s one grade finer than the finish of a conventional fibre disc of the same grade.
Recommended Applications
- Grinding to bare metal
- Deburring
- Weld grinding and seam blending
- Edge grinding
- Rust removal
- Paint removal
- Paint stripping
Better Science for Better Sanding from 3M
Our 3M™ Cubitron™ II Flap Discs features our highest abrasive technology for a range of grinding, blending and finishing jobs in collision repair. Featuring PSG and a flexible flap design, it is an excellent example of how 3M applies science to life – and makes your collision repair operations run smoother, faster and more efficiently.

Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M 98878, General Use Flatback Tape 2515, Tan, 96 mm x 55 m, 8 Roll/Case, 7100048099
3M 31583, Hi-Strength Postforming 94 CA Fragrance Free Cylinder Spray Adhesive, Red, Large Cylinder (Net Wt 26.2 lb), 7010329925
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
Insize 7232, SCRIBER, 6928640320088
3M 97986, Hi-Strength 94 ET Cylinder Spray Adhesive, Red, Large Cylinder (Net Wt 26.2 lb), 7100018953
Dynabrade 78589 1/4" Dia. x 2" W x 1/8" Center Hole, 120 Grit, 100/pack
Dynabrade 95848 Dynabrade Gear Oil
3M 62612, Scotch-Weld Threadlocker TL71, Red, 10 mL Bottle, 7100039197, 10/case
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
3M 62611, Scotch-Weld Threadlocker TL62, Red, 250 mL Bottle, 7100039195, 2/case
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 26016, PPS Series 2.0 Adapter, Type S9, 16 mm Male, 1.5 mm Thread, 7100135330
Dynabrade 92151 1/2" W x 18" L 120 Grit Ceramic DynaCut Scalloped Edge Belt, 50/pack
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
3M 25496, Scotch-Weld Epoxy Adhesive 2214 Non-Metallic Filled, Cream, 6 fl oz Cartridge, 7000121273, 4/case
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 79173 2" W x 30" L 60 Grit Ceramic DynaCut Belt, 10/pack
3M 01708, Scotch-Brite SST Deburring Wheel, ST-WL, 8S Fine, 8 in x 2 in x 3 in, 7000144590
3M 02894, Scotch Printable Flatback Paper Tape 256, White, 3/4 in x 60 yd, 6.7 mil, 48/Case, 7000047439
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 78182 3" Dia. Medium DynaBrite Locking-Type Disc, 25/pack
Dynabrade 92116 1/2" W x 12" L 320 Grit A/O DynaCut Belt, 50/pack
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 78424 4-1/2" Dia. x 3/8" Medium DynaBrite Surface Conditioning Disc, 25/pack
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
Dynabrade 78295 3" Dia. x 6A M Medium Type R Unitized Locking-Type Disc, 25/pack
Dynabrade 78176 2" Dia. Medium NWN VT DynaBrite TR Locking-Type Disc, 25/pack
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
3M 85492, Scotch Foil Tape 3311-10A, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7010383663
3M 27551, EMI Copper Foil Shielding Tape 1181, 1/2 in x 18 yd (12.70 mm x 16.5m), 7000132182
3M 33066, Cloth Belt 341D, P100 X-weight, 25 in x 48 in, Sine-lok, Single-flex, 7010308084, 5 per case
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 45702, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, Die 300V, 7100113117
3M 13767, Scotch-Brite EXL Unitized Wheel, XL-UW, 8A Coarse, 3 in x 1/2 in x 1/4 in, 7010365791
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 50258, Roloc Disc 777F, 60 YF-weight, TSM, 3 in, Die RS300VM, 7010325551
Standard Abrasives 42620, A/O Flap Wheel 621405, 1 in x 1 in x 1/4-20 in 60, 7010294994, 10 per case
Dynabrade 51731 .1 hp Straight-Line Pencil Grinder, 60,000 RPM, 1/8" Collet
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
Standard Abrasives 547003, Adapter, 5/8"-11 Male x 3/8"-24 Female, 7010368726
3M 30708, Cloth Belt 577F, 120 YF-weight, 1/4 in x 18 in, Fabri-lok, Single-flex, 7010308884, 200 per case
3M 20910, PSA Cloth Disc 348D, 60 X-weight, 2 in x NH, Die 200P, 7000118872
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
ACS Diamond Cloth Belt, CX1250 3/8" X 24" 75U
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 45708, Cubitron II Hookit Cloth Disc 947A, 60+ X-weight, 6 in x NH, Die 600Z, 7100113142
Standard Abrasives 265006, Buff and Blend Cross Buff HS, A/O Medium, 3/4 in x 3/8 in x 2 Ply x 8-32, 7010330373
3M 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169
3M Scotchkote Liquid Epoxy Coating Spray System HSS Mix Nozzle, RightAngle, 7000058900
3M 29859, Sanding Screen, 100 grit, 12 in x 18 in, 7100160861
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
3M 45722, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 6 in x NH, D/F 6HL, Die 600HZ, 7100113871
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Standard Abrasives 32929, PSA A/O Disc, 709607, 1/2 in x NH, 120, 7100037906
3M 08214, Unversal Adhesive Black -10, 200 mL Cartridge, 7000148204, 6 per case
3M 76623, Roloc Disc 777F, 50 YF-weight, TR, 1 in, Die R100N, 7000045619
Standard Abrasives 714719, A/O Straight Cartridge Roll, 5/8 in x 2 in x 3/16 in 80, 7100092959
3M 45038, Wheel Adapter Kit No.3, 5/8-11 External, 7000028423
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095 
