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 93918 3/4" x 3-48 Female Center Thread, Very Fine, Dynabrite Surface Conditioning Eyelet Star, 50/pack
Dynabrade 96558 Raptor Vac Cleaning Kit, w/ 6ft. Hose
Dynabrade 62315 - 74 mm x 109 mm Non-Vacuum Hook & Loop Pad
Dynabrade 59380 Rotor/Vane Set
Dynabrade 52719 Cone or Plug 6" (152 mm) Extension Wheel Grinder, 12,000 RPM, 3/8"-24 Male Thread Spindle
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
Dynabrade 91703 DynaMesh 3" 150 Grit Hook & Loop Discs, 50 per box
Dynabrade 82459 5" Dia. x 180 Grit A/O PSA Filmbac DynaCut Disc, 100/Box
Dynabrade 91574 6" Dynacut Extreme Orange Premium Film Disc, 120 Grit, Hook & Loop, Non-Vacuum, 50/Box
Dynabrade 94990 1/4" Female Composite-Style Coupler with 1/4" Male Plug Assembly
Dynabrade X62H 6" (152 mm) Dia. Non-Vacuum Dynorbital Extreme Random Orbital Sander, .3 HP, 12,000 RPM, 3/32" Orbit, Hook-Face
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 79070 1/4" W x 18" L 36 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 22070 Downdraft Table Accessory Pack (Air Manifold, FRL and On/Off Air Valve)
Dynabrade 48535 3" Dia. Epic Finish Kit With 48531 Geared Disc Sander, Rear Exhaust, .4 HP, 15,000 RPM
Dynabrade 91529 5" Non-Vacuum 120 Grit, Dynacut Extreme Orange Premium Film PSA Disc, 50/pack
Dynabrade 64674 Filter Cartridge
Dynabrade 14300 Dynangle II Abrasive Belt Tool, Single Motor
Dynabrade 91530 5" Non-Vacuum 150 Grit, Dynacut Extreme Orange Premium Film PSA Disc, 50/pack
Dynabrade 91435 1/4" W x 24" L 80 Grit A/O DynaCut Belt, 50/pack
Dynabrade 51350 2-3/4" W x 11" L File Board Sander, Non-Vacuum
Dynabrade 95848 Dynabrade Gear Oil
Dynabrade 79062 1/2" W x 24" L 80 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 64002 SuperFinisher, 230 Volts (AC), 1 Phase, 50 Hz
Dynabrade 92245 - 4" (102 mm) Dia. x 3/4" (19 mm) W Bent Coarse Wire Wheel
Dynabrade 95734 1/4" NPT Flow Control Dynaswivel
Dynabrade 93609 1" Dia. x 3/8", 3-48 Female Center Thread, 60 Grit A/O, 8 Ply, J-DynaCut Cross Pad, 100/pack
Dynabrade 82489 6" Dia. x 100 Grit A/O Vacuum PSA Filmbac DynaCut Disc, 100/Pack
Dynabrade 90499 1/2" W x 34" L 120 Grit A/O DynaCut Belt, 50/pack
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
Dynabrade 90874 2" Dia. Very Fine NWN DynaBrite Locking-Type Disc, 25/pack
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 13512 Dynastraight 6" (152 mm) Extension Finishing Tool, 1 HP, Rear Exhaust, 3,400 RPM, 1/2" (13 mm) Dia. Arbor 




