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 57400 2-3/4" (70 mm) W x 8" L Dynaline Sander, Non-Vacuum
Dynabrade 59183 6" Dia. Dynorbital-Spirit Random Orbital Sander, Central Vacuum, 3/32" Orbit
Dynabrade 56668 Housing Assy for Model 59114; 12,000 RPM
Dynabrade 93658 3" Dia. x 3/8" CH 40/50 Grit Gulleted/Slotted Diamond Cut-Off Wheel
3M 90122, Scotch-Brite Deburr and Finish Pro Unitized Wheel, DP-UW, 8C Coarse+, 3 in x 1/2 in x 1/4 in, 7100105530
Dynabrade 51348 2" Dia. Locking-Type Disc Pad, Medium Density, 1/4"-20 Thread
Dynabrade 11231 Contact Arm Ass'y, 3/4" Dia. x 1/2" W, Rubber Wheel, with 1/2" W Platen
Dynabrade 92100 3" W x 10-11/16" L 40 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 52986 3/8" Drill, .4 HP, Rear Exhaust, 500 RPM
Dynabrade 52632 4-1/2" Dia Right Angle Depressed Center Wheel Grinder, 1.3 HP, 12,000 RPM, 5/8"-11 Spindle
Dynabrade 61461 Raptor Vac Electric Portable Vacuum System, 7.9 Gallon, 120 V
Dynabrade 55585 .4hp Mini Right Angle Drill with Adjustable Angle Head, 2,400 RPM, Rear Exhaust, 9/32"-40 Thread
Dynabrade 79508 1/4" W x 24" L Premium Coarse Plus NWN DynaBrite Belt,10/pack 
