A Tough Disc for Tough Surfaces
Built to hold up during the most demanding auto body sanding jobs, 3M™ Green Corps™ Hookit™ Abrasive Disc 255U is resin bonded for heat resistance. And our Hookit™ attachment system lets operators quickly change out discs during multi-step sanding processes.
Superior Dust Resistance
Open coat construction means that our abrasive grains are spaced so that dust and debris can collect in the spaces rather than loading the disc. Additionally, the open coat feature provides a more aggressive cut than a comparable closed coat abrasive of the same grade, for faster results. Several versions of this disc feature our 7- or 8-hole pattern that helps evacuate dust from the work surface, dramatically increasing disc life and maximizing cut-rate.
Blended Grain for Better Cut
The 3M™ Ceramic Abrasive Grain is a ceramic mineral designed using a 3M process to enhance toughness and hardness of the grain. For increased performance, 3M™ Green Corps™ Hookit™ 255U abrasive discs feature aluminum oxide blended with 3M™ Ceramic Abrasive Grain for one of the most durable, longest-lasting abrasives available. Perfect for moderate to heavy stock removal as well as sanding and finishing applications, ceramic abrasives are engineered to cut fast and handle intense heat and stress. Ceramic aluminum oxide blend surpasses aluminum oxide abrasives in cut-rate and durability, making this product an excellent choice for sanding metal, plastic, and fiberglass substrates, and finishing applications.
Our Hookit™ Attachment System
Hook-and-loop style 3M™ Hookit™ discs are ideal for work spaces where adhesive backed discs may become contaminated by dust, dirt, or flying debris. They are often used in applications where a 3M™ Stikit™ disc may be too aggressive, as Hookit™ discs tend to leave finer finishes than adhesive backed discs. 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 be used again and again for the extent of the abrasive life.
Durable Through and Through
From grain to backing to bonding to disc pad attachment, our Green Corps™ Hookit™ Abrasive Disc 255U is built for long life – even for tough auto body sanding projects. Top quality sanding using fewer discs is just another way that auto body professionals can get the most from their operations.

Dynabrade 92911 - 1" (25 mm) Dia. x 1-1/2" (38 mm) W Slotted Wheel
Dynabrade 02504 Rotor
Dynabrade 79166 1/2" W x 30" L 40 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 46000 .4 hp Right Angle Die Grinder, Rear Exhaust, 12,000 RPM, 1/4" Collet
Dynabrade 90424 1/4" W x 24" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 92209 1/8" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 32010 Dolly for RaptorVac DrumVac Kits
Dynabrade 56727 .4 hp 7 Degree Offset Die Grinder, Central Vacuum, 5,000 RPM, 1/4" Collet
Dynabrade 78583 1/4" Dia. x 1-1/2" W x 1/8" Center Hole, 60 Grit, 100/pack
Standard Abrasives 708564, A/O Straight Cartridge Roll, 1/2 in x 2 in x 1/8 in 80, 7100093093
Dynabrade 95461 3/8" NPT Original Aluminum Dynaswivel
Dynabrade 82574 1/2" W x 24" L 60 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 96173 Motor Tune-Up Kit
Dynabrade Dynacut 94021, 10-piece, Alloy Specific Burr Kit (for Nickel & Titanium), 1/8" Shank
Dynabrade 79874 3" 600 Grit Dynacut Extreme Orange Film Vac Hook Face Disc, 50 per box
Dynabrade 78565 4" Dia. 2-Set, 1/4-20 Female Center Thread, 60 Grit, Dynacut A/O Overlap Slotted Disc, 100/pack
Dynabrade 50343 2" (51 mm) Dia. Depressed Center Grinder, .4 HP, 25,000 RPM, 3/8"-24 Spindle
Dynabrade 78315 2" Dia. x 1" W x 1/4" Shank, Coarse, NWN DynaBrite Wheel, 10/pack
Dynabrade 57127 3" (76 mm) Dia. Right Angle Depressed Center Wheel Grinder, Steel Housing, .55 HP, 15,000 RPM, 3/8"-24 Spindle
Dynabrade 02093 Drop-In Motor
Dynabrade 78101 2" Dia. x 80 Grit A/Z DynaCut Locking-Type Disc, 2 Ply Cloth, 25/pack
Dynabrade 57126 3" Dia. Dynabuffer Random Orbital Polisher
Dynabrade 78769 3" Dia. x 2" W x 1/4" Shank, Fine, NWN DynaBrite Wheel, 10/pack
Dynabrade 78572 2" Dia. x 1/4"-20 Female Center Thread, 60 Grit, A/O, 3-Ply, J-DynaCut Eyelet Star, 50/pack
Dynabrade 54785 3" (76 mm) Dia. Extended Right Angle Type 27 Depressed Center Wheel Grinder, Steel Housing, .7 HP, 18,000 RPM, 3/8"-24 Spindle
Dynabrade 78639 3/8" Dia. x 1-1/2" W x 1/8" Center Hole, Z/A, 120 Grit, 100/pack
Dynabrade 93245 8" Dia. x 1/2" Center Hole, 120 Grit, A/O, Arbor-Mount Sanding Star
Dynabrade 78550 1-1/2"Dia. 2-Set, 8-32 Female Center Thread, 80 Grit, Dynacut A/O Overlap Slotted Disc, 100/pack
Dynabrade 51400 3" Dia. 7 Degree Offset Rotary Buffer, .4 hp, 3,200 RPM, Rear Exhaust, 3/8"-24 Spindle Thread
Dynabrade 90594 1-1/2" W x 30" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 32016 55 Gallon Drum
Dynabrade 50297 7" Dia. Disc Backup Pad, Hard Density, 5/8"-11 Thread
Dynabrade 78027 3/4" W x 18" L Super Fine NWN DynaBrite Belt, 10/pack
Dynabrade 58511 68 mm x 175 mm Dynabug II Orbital Sander, Non-Vacuum, .15 hp, 10,000 RPM, 3/32" Orbit
Dynabrade 52432 4" (102 mm) Dia. 7 Degree Offset Cut-Off Wheel Tool, Rear Exhaust, .7 HP, 15,000 RPM, 3/8"-24 Spindle
Dynabrade 11462 Dynabelter Finisher
Dynabrade 78363 8" Dia. x 1" W x 3" Center Hole, 8S Fine, S/C DynaBrite Deburring Convolute Wheel, 2/box
Dynabrade 01036 Drop-In Motor
Dynabrade 78045 1/4" W x 24" L Coarse NWN DynaBrite Belt, 10/pack
Dynabrade 52573 4" (102 mm) Dia. Straight-Line Cut-Off Wheel Tool, Rear Exhaust, 1 HP, 15,000 RPM, 3/8"-24 Spindle
Dynabrade 52294 .7 hp 7 Degree Offset Die Grinder, Rear Exhaust, Short Shank, 20,000 RPM, 1/4" Collet 
