We developed our Cubitron™ II Hookit™ Clean Sanding Abrasive Discs 737U for superior cut and long disc life during key stages in auto body repair. It features 3M™ Precision Shaped Grain technology. This triangular shaped grain cuts 30% faster and lasts at least 30% longer than traditional ceramic abrasives. The disc is ideal for feather edging, as a final sanding step before priming, or during prep before blending.
About Cubitron II and Precision Shaped Grain
Cubitron™ II products have raised the bar for high performing abrasives. Cubitron™ II utilizes 3M™ Precision Shaped Grain, which outcuts and outlasts conventional ceramic industrial abrasives and requires less grinding force to achieve superior performance.
About Hookit™
3M offers a complete range of hook and loop style Hookit™ discs for work spaces where adhesive backed discs may become contaminated by dust, dirt, or flying debris. Hookit™ sanding discs conveniently and firmly attach to a hook and loop backup disc pad (sold separately) on a random orbital sander, can be removed cleanly and easily, and can be reused again and again for the extent of the abrasive life.
About 3M™ Clean Sanding
The multi hole pattern on 3M™ Clean Sanding discs evacuates dust better than 6 hole products—significantly increasing cut rate and disc life. When used with a 3M™ Clean Sanding Disc Pad, the disc holes do not require alignment with the pad holes, making switching the discs fast, easy, and convenient. You can also pair Clean Sanding abrasives with Clean Sanding disc pads for use on a central vacuum ready sander.

Dynabrade 50947 - 8" (203 mm) Dia. Non-Vacuum Wet/Dry Sander Disc Pad, Hook-Face, Short Nap
Dynabrade 96139 Retaining Ring
Dynabrade 53435 Drill, .4 HP, Rear Exhaust, 3,200 RPM, 1/4"-28 Female Thread
Dynabrade 53531 Cone or Plug Grinder (Single Extension), 18,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 15026 Contact Arm Ass'y, 5/8" Dia. x 3/8" W, Rubber Wheel, with 1/2" W Platen
Dynabrade 02679 Shield
Dynabrade 15310 Guard
Dynabrade 11080 Contact Wheel Ass'y, 1" Dia. x 3/8" W x 3/8" I.D., Round Radiused Face, 70 Duro Rubber
Dynabrade 57804 3-2/3" W x 7" L Dynabug Orbital Sander, Central Vac-Ready, .24 HP, 8,000 RPM, 3/16" Orbit
Dynabrade 91629 1-1/2" W x 24" L 320 Grit A/O DynaCut Belt, 10/pack
Dynabrade 02649 Bearing
Dynabrade 59464 Dynorbital-Spirit Drop-In Motors (10 Pack) with Repair Tools Included
Dynabrade 01024 O-Ring
Dynabrade 78710 5/16" x 5/8"-B53 Dynacut A/O Mounted Point, 5/pack
Dynabrade 58418 6" Dia.Two-Hand Dynorbital Random Orbital Sander, Non-Vacuum
Dynabrade 56863 6" Dia. Central Vacuum Dynorbital Supreme Random Orbital Sander, 3/32" Orbit
Dynabrade 11395 Guide Wheel
Dynabrade 91162 3/8" W x 13" L 60 Grit A/O DynaCut Belt, 50/pack 
