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 11254 Contact Arm Ass'y, 4-3/4" Dia. x 1/2" W
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
3M 45704, Cubitron II Hookit Cloth Disc 947A, 60+ X-weight, 5 in x NH, Die 500X, 7100113137
ACS Diamond Cloth Belt, CX1250 3" X 90" 20U
ACS CX1250 Diamond Belt, 1/2" X 24" 30u
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
Dynabrade 95544 Gear Grease, 2.5oz. Tube
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
3M 55717, Stikit Film Disc 375L, 5 x NH P1000 w/Skipslit Liner, 7010363363, 250 per case
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
3M 45701, Cubitron II Hookit Cloth Disc 947A, 80+ X-weight, 3 in x NH, Die 300V, 7100113126
3M 14345, Marine Adhesive Sealant 4000 UV, Black, 3 oz Tube, 7010367954, 6/Case
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 62714, Scotch-Weld Stainless Steel High Temperature Pipe Sealant PS67, White, 50 mL Tube, 7100039216, 10/case
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 26620, Accuspray Atomizing Head Refill Pack for 3M PPS Series 2.0,Red, 2.0 mm, 7100141414 (4 Nozzles/Kit)
3M 26129, PPS Series 2.0 Adapter, Type S34, 3/8 Female, 18 Thread NPS, 7100135938
3M™ 07011, Supplied Air Respirator Hose W-9435-50/07011(AAD), 7000005373, 1 EA/Case
3M 82239, Scotch-Weld Epoxy Adhesive 420, Off-White, Part A, 5 Gallon Drum (Pail), 7100001144
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
3M 08976, Scotch-Weld Epoxy Adhesive DP100 Plus, Clear, 48.5 mL Duo-Pak, 7100148750, 12/case
Dynabrade 95848 Dynabrade Gear Oil
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 26136, PPS Series 2.0 Adapter, Type S32, 18 mm Female, 1.5 mm
Thread, 7100135952
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
3M 22972, Disc Holder Adapter 9, 5/8-11 External M10-1.50 Internal, 7000046095
3M 80835, Flexible Diamond Hand File 6210J, No 2, Yellow, 18, N40, 7000082160, 10 Per Case
3M 37001, Combination Dual Airline Back-Mounted Breathing Tube SA-2600/37001(AAD), 7000002044, 1 EA/Case
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738 
