We developed our Cubitronâ„¢ II Hookitâ„¢ Clean Sanding Abrasive Discs 737U for superior cut and long disc life during key stages in auto body repair. It features 3Mâ„¢ 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 Hookitâ„¢
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 3Mâ„¢ 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.

3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
3M 62709, Scotch-Weld Anaerobic Activator AC649, Green, 8 fl oz Bottle, 7010367620
Dynabrade 40378 Rubber Drive Wheel, Mini Dynafile II
3M 62682, Scotch-Weld General Purpose Instant Adhesive Accelerator AC113, Clear/Light Amber, 8 fl oz Bottle, 7100079891
3M 61354, Adhesion Promoter K520UV, 1 gal Can, 7000052368
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 87937, Scotch-Weld Instant Adhesive Surface Activator, Light Amber, 2 fl oz Bottle, 7000046525
Dynabrade 11282 Contact Wheel Ass'y, 3/4" Dia. x 5/8" W x 3/8" I.D., Crown Face, 70 Duro Rubber
Dynabrade 11080 Contact Wheel Ass'y, 1" Dia. x 3/8" W x 3/8" I.D., Round Radiused Face, 70 Duro Rubber
Dynabrade 11638 Contact Wheel Ass'y, 4" Dia. x 1/2" W x 5/8" I.D., Severly Face, 70 Duro Rubber Radiused
Norton 66254433510 - 2" X 1/4" Medium Grade Aluminum Oxide Vortex Rapid Blend Blue Non-Woven Unified Wheel, 60 Each
3M 62728, Scotch-Weld Instant Adhesive Primer AC77, Clear, 2 fl oz Bottle, 7100039260
3M 54448, Adhesion Promoter K540NTUV, 1 gal Can, 7100074884
3M 62708, Scotch-Weld Anaerobic Activator AC649, Green, 2 fl oz Bottle, 7100075275
Dynabrade 11642 Contact Wheel Ass'y, 4" Dia. x 5/8" W x 5/8" I.D., Scoop Face, 40 Duro Rubber
3M 99129, Polyurethane Adhesive Sealant Accelerator AC63, 45 mL Sausage Pack with Manifold, 7100062120
3M 53509, Adhesion Promoter 2262AT, 4 oz, 7100118774
ACS Diamond Grinding Disc, 4-1/2" Dia. X 5/8"-11 Center Hub Thread, Type 29, 36 Grit
3M 53510, Adhesion Promoter 2262AT, 1 gal, 7100118749
Dynabrade 11399 Type 27 Wheel Mounting Adapter Kit
3M 06192, Scotch Thread Sealant and Lubricant 48, 1/4" x 260" in box, 12 Rolls/Case, 7000142693
3M 97967, Foam Fast Spray Adhesive 74 CA, Low VOC <25%, Clear, 24 fl oz Can (Net Wt 19.0 oz), 7100014108, 12/Case
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 62686, Scotch-Weld Instant Adhesive Accelerator AC452, Amber, 8 fl oz Bottle, 7010295349
3M 86745, Diamond Disc, 2" Roloc, 674W, 120 Mesh, TR, 7100022116, Box of 10 
