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
Standard Abrasives 730102, Ceramic Full Taper Cartridge Roll, 1/2 in x 1-1/2 in x 1/8 in 120, 7100102951
3M Super Abrasives Roloc Disc, 2" Type-R, Medium AO High Strength, Box of 50
Dynabrade 95848 Dynabrade Gear Oil
3M 16578, Accuspray ONE Spray Gun Kit, 7100096182
3M 17075, Versaflo Headcover with Integrated Head Suspension, S-133S-5, White, Small/Medium, 7000127429, 5 EA/Case
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 45037, High Intensity Prismatic Reflective Digital Sheeting 3931UDS, Yellow, 24 in x 50 yd, 1 Roll/Case, 7100282392
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 20730, PPS Series 2.0 Spray Cup System UV Kit, Standard (22 fl oz,
650 mL), 125u Micron Filters, 7100128906
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 78182 3" Dia. Medium DynaBrite Locking-Type Disc, 25/pack
3M 86433, Scotch-Weld Multi-Material Composite Urethane Adhesive DP6330NS,Green, 400 mL Duo-Pak, 7100109827, 6 Each/Case
Dynabrade 96067 Motor Tune-Up Kit
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
3M 64660, Scotch-Brite Durable Flex Hand Pad, MX-HP, SiC Ultra Fine, 4-1/2 in x 9 in, 7100042335, 25/Carton
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
3M 16238, PPS Spray Gun Holder, 4 Gun, 7100158720
Dynabrade 91429 1/2" W x 12" L 80 Grit A/O DynaCut Belt, 50/pack
3M™ 07010, Supplied Air Respirator Hose W-9435-25/07010(AAD), 25 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005374, 1 EA/Case
Dynabrade 97567 1/4" Safety Coupler, Male 
