Restoring Original Finishes
Conventional methods for blending weld traces and other imperfections can be time consuming and unpredictable. The Standard Abrasives MD Mini-Brush restores the original appearance of metal parts quickly and easily. Users begin by welding and setting the grain as normal. Then, the Standard Abrasives MD Mini-Brush follows to deliver stainless finishes.
The brush is constructed by attaching thin flaps of abrasive material mounted to a fiberglass core. Its design utilizes the face of the material rather than the edge, resulting in fine finishes without leaving the traces of lines associated with ganged arbor hole discs. The flaps are buoyant and responsive, so, rotating on the workpiece they splay out subtly and cover more surface area to eliminate gaps. The brush easily attaches to a die grinder or rotary tool and can be brought to the workpiece if necessary.
Medium Density Material Produces Fine Finishes
Our MD Mini-Brush utilizes our Standard Abrasives Buff and Blend medium density non-woven material. Among Buff and Blend products, the Mini-Brush is the least aggressive, making it ideal for producing fine finishes on irregular shaped parts.
Benefits of Open Web Abrasives
The Standard Abrasives MD Mini-Brush is constructed with aluminum oxide mineral and nonwoven nylon fibers bonded with resin, resulting in a dense open web. Resin bonds tolerate heat and help enhance overall durability of the abrasive. Aluminum oxide mineral cuts sharp and is friable, fragmenting under heat and pressure to reveal sharp cutting edges, offering a consistent cut throughout the life of the abrasive.
Gaps between the nonwoven nylon fibers allow swarf and debris to escape, so the abrasive does not get clogged with buildup and keeps cutting sharper for longer. Moreover, the nylon fibers are buoyant and responsive, so you get a consistent cut without gouging or marring the workpiece. Given that maintaining part geometry especially on fabricated steel parts is often a top concern, the mini-brush’s ability to conform to the substrate without compromising part geometry is one of its key benefits. It helps reduce the likelihood of having to discard scrap parts due to incorrect tolerances, as well as minimizes the need for rework.
Broad Range of Grades
The Mini-Brush is color coded by grade to help users quickly identify the right grade for their application. Available grades range from very fine to extra coarse to meet the needs of many different surfaces. Medium and fine grades will cut less aggressively but leave a finer scratch pattern, whereas coarse grades will cut more aggressively and leave a rougher scratch pattern.
Altogether, the Mini-Brushes provide a quality, fast and easy solution for restoring original steel finishes.
Quality Standard Abrasives Solutions for Industrial Applications
The Standard Abrasives brand has supplied quality abrasives to the metalworking industry for over 50 years. Customers rely on our broad offering of high performance products including coated, bonded, and non-woven abrasive lines.

Dynabrade 55418 Muffler Ring, Variable Speed PG
Dynabrade 11231 Contact Arm Ass'y, 3/4" Dia. x 1/2" W, Rubber Wheel, with 1/2" W Platen
Dynabrade 52376 3" (76 mm) Dia. Straight-Line Type 1 Extension Wheel Grinder, 1 HP, 12,000 RPM, 3/8"-24 Spindle
Dynabrade 56195 5" Dia. Non-Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade 55157 Shroud Inner for Front Exaust
Dynabrade 11218 Contact Arm Ass'y, 5/8" Dia. x 3/8" W, Rubber Wheel, with 1/2" W Platen
Dynabrade 53077 1/4" Straight-Line Drill, .4 HP, Rear Exhaust, 950 RPM
Dynabrade 55226 Housing Cover, Sander
Dynabrade 68101 Coolant Filtration System, 230 V (AC), 1 Phase, 50 Hz
Dynabrade 15360 Dynafile III Abrasive Belt Machine for 24" Belts
Dynabrade 64000 SuperFinisher, 115 Volts (AC), 1 Phase, 60 Hz
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Dynabrade 53242 7" Dia. Type 27 Vertical Depressed Center Wheel Grinder, 3 HP, 6,000 RPM, 5/8"-11 Spindle
Dynabrade 13535 Dynastraight Finishing Tool Versatility Kit, 1 HP, Rear Exhaust, 4,500 RPM, 5/8"-11 Arbor
Dynabrade 64905 Fixed Speed Versatility Grinder, 1.5 hp, 230 V (AC), 1 Phase, 50/60 Hz, 5,400 SFPM, for 1/4"-2" W x 72" L (6-51 mm x 122 cm) Belts
Dynabrade 91641 2" W x 36" L 220 Grit A/O DynaCut Belt, 10/pack
Dynabrade 52861 .4 hp Straight-Line Pencil Grinder, Rear Exhaust, 25,000 RPM, 1/8" Collet
Dynabrade 92186 1" W x 30" L 60 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 96542 Motor Tune-Up Kit
Dynabrade 22070 Downdraft Table Accessory Pack (Air Manifold, FRL and On/Off Air Valve)
Dynabrade 79109 1/2" W x 12" L 80 Grit DynaCut Premium Ceramic Belts, 50/pack
Standard Abrasives 713296, Aluminum Oxide Handy Roll, P320 J-weight, 2 in x 50 yd, 7100034517
Dynabrade 78319 3" Dia. x 1" W x 1/4" Shank, Coarse, NWN DynaBrite Wheel, 10/pack 

