Get a More Perfect Body in White
3M Trizact Hookit Cloth Disc 337DC was designed for automotive white metal repair. It is ideal for blending and finishing minor defects and for use to remove scratch marks left behind by metal files or rotary tools. It provides a very fast scratch removal capability combined with a superior finish, leaving the surface ready for e-coat application.
This cloth disc is available in grades of A300, A160, A100, A65, A45, A30 and 5-inch diameters, as well as make-to-order sizes.
“Bricks and Channels” Abrasive Structure
Microreplication is the technology behind the geometrical “bricks-and-channels” abrasive structure of 337DC products. These unique abrasive bricks contain up to four times as much mineral as conventional abrasives. As the mineral breaks down, fresh mineral is exposed.
The microreplicated pattern of 3M Trizact Hookit Cloth Disc 337DC generates minimal heat. The open spaces between the abrasive bricks channels heat away and removes swarf. This means you can use these discs on substrates like galvanized panels, aluminum hoods, and other applications where loading may be an issue.
Get a Grip With Hookit Attachment
3M’s Hookit hook-and-loop attachment makes disc attachment, removal, and re-attachment clean and easy, and facilitates re-use of the disc for the extent of the abrasive life.
It couldn’t be simpler to attach a disc and it stays firmly seated. In addition, they are more flexible and they resist contamination by dust, dirt, and debris, unlike pressure sensitive adhesive backings.
Recommended Applications
- Hand file scratch refinement
- Rotary tool scratch refinement
- Blending and finishing of minor defects
- Effective on galvanized and aluminum parts
3M Science. Sculpting the Geometry of Abrasive Grain.
3M pioneered the use of tiny, precisely shaped structures to give materials new physical, chemical, or optical properties with microreplication technology.
It allows 3M to engineer the geometry of abrasive grain, to create and reproduce perfectly calibrated three-dimensional composite structures ?pyramids, hemispheres, cubes ? and distribute them precisely and uniformly across an abrasive backing. Each is identical in height and orientation, eliminating the danger of uneven edges or deep scratches. As the abrasive wears, a continuous supply of fresh, sharp abrasive mineral is exposed, sustaining consistent cutting performance and profile.
The science that makes 3M’s structured abrasives work better and wear more evenly, provide pristine finishes for delicate components is also the science that makes road signs, electronic displays, and exterior building illumination capture and reflect light more brilliantly.

Dynabrade 92103 3" W x 10-11/16" L 120 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 59357 Housing for Model # X52
Dynabrade 59384 Coupler- Ground Wire
Dynabrade 14000 Dynafile Abrasive Belt Tool
Dynabrade 95870 Hose, 1/2" I.D. 5' Long
Dynabrade 79361 5" Dia. x 100 Grit A/O Hook & Loop, Multi-Hole Vacuum Film-Backed DynaCut Disc, 100/Box
Dynabrade 95398 Bearing
Dynabrade 90614 3" W x 10-11/16" L 80 Grit A/O DynaCut Belt, 10/pack
Dynabrade 69481 5" Extreme Drop-in Motor, 3/32" Orbit
Dynabrade 59282 Shaft Balancer
Dynabrade 11254 Contact Arm Ass'y, 4-3/4" Dia. x 1/2" W
Dynabrade 78861 Crimped Wire Radial Wheel Brush 2" Dia. x .0118 x 7/16" Steel
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 79969 5" Dia. x 60 Grit Non-Vacuum Hook-Face DynaCut Disc, 100/Box
Dynabrade 95801 Hose Assembly, Wet Sander
Dynabrade 53521 Polisher (Single Extension), 1 HP, 3,400 RPM, 1/2"-20 Spindle Thread
Dynabrade 52558 3" Dia. Right Angle Disc Sander, Rear Exhaust, .55 HP, 15,000 RPM, 3/8"-24 Thread
Dynabrade 79175 1" W x 18" L 80 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 96558 Raptor Vac Cleaning Kit, w/ 6ft. Hose
Dynabrade 79129 1" W x 18" L 60 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 84851 3" x 4" Medium Foam, Extreme Orange, 24 per pack
Dynabrade 11253 Contact Arm Assy
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
Dynabrade 78168 1-1/4" Dia. x 220 Grit S/C Non-Vacuum PSA DynaCut Disc 25/pack
Dynabrade 93918 3/4" x 3-48 Female Center Thread, Very Fine, Dynabrite Surface Conditioning Eyelet Star, 50/pack
Dynabrade 54777 4" (102 mm) Dia. Extended Right Angle Type 27 Depressed Center Wheel Grinder, .7 HP, 13,500 RPM, 3/8"-24 Spindle
Dynabrade 78694 D22 Cartridge Roll Mandrel 1/4" Pilot Dia. x 1-1/2" Pilot Length, 1/4" Dia. Shank x 1-1/4" Shank Length
Dynabrade 78050 1/2" W x 24" L Medium NWN DynaBrite Belt, 10/pack
Dynabrade 51701 .1 hp Straight-Line Pencil Grinder, 60,000 RPM, 3mm Collet
Dynabrade 64674 Filter Cartridge
Dynabrade 56316 3" x 4-1/4" Vacuum Dynabug II Disc Pad, Hook-Face, Short Nap 




