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Standard Abrasives™ High Strength Mini-Brush

Products
  • Delivers high-quality finishes with sharp cutting and self-renewing aluminum oxide mineral
  • Open web is load resistant, prolonging abrasive service life
  • Open web is spongy and responsive, conforming to most surface geometries
  • Resin bond is heat resistant and withstands repeated wear
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Specifications
Attribute Name
Value
Attachment Type
Threaded
Brand
Standard Abrasives™
Center Hole Diameter
0.625 Inch
Color
Blue, Green
Diameter
4.5 Inch
Diameter (Metric)
114.3 mm
Form Type
Flap
Grade
CRS, MED
Max RPM
3500
Mineral Type
Aluminum Oxide
Product Form
Brush
Width
2 Inch, 4 Inch
Width (Metric)
101.6 mm, 50.8 mm
Product Details
  • Delivers high-quality finishes with sharp cutting and self-renewing aluminum oxide mineral
  • Open web is load resistant, prolonging abrasive service life
  • Open web is spongy and responsive, conforming to most surface geometries
  • Resin bond is heat resistant and withstands repeated wear
  • High Strength Buff and Blend material has great tear resistance

Our Standard Abrasives™ High Strength Mini-Brush restores the original, high-quality finish on fabricated steel parts. While welds or other imperfections might detract from the shininess of the part, the original luster can still be salvaged – even revitalized and renewed – with the help of this abrasive brush.

Standard Abrasives™ HS Mini-Brush
Uses a simple repeatable
procedure that any operator
can quickly master
Restore Original Finishes
Conventional methods for blending weld traces and other imperfections can be time consuming and unpredictable. The Standard Abrasives™ High Strength Mini-Brush restores the original appearance of your metal parts quickly and easily. Users begin by welding and setting the grain as normal. Then, the Standard Abrasives™ High Strength Mini-Brush follows to deliver stainless finishes.

The brush is constructed by attaching thin flaps of nonwoven 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 the 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. It is made with high strength (HS) buff and blend material, which has greater tear resistance and is perfect for use on final finishing of irregular shaped parts.

Benefits of Open Web Abrasives
Standard Abrasives™ High Strength Mini-Brush mixes aluminum oxide mineral and nonwoven nylon fibers with a resin bond, 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, so you get 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 minimize the need for rework.
 
The High Strength Mini-Brushes are quality abrasives, providing users with a fast and easy way to restore workpiece finishes to their original condition.
Use a Standard Abrasives
Mini-Brush on a rotary sander
to quickly generate a
high-quality finish
Variations of the High Strength Mini-Brush
The Standard Abrasives™ High Strength Mini-Brush is color coded by grade to help users quickly identify the right grade for their application. Grades include medium (MED) and coarse (CRS). Medium 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 High Strength Mini-Brushes are quality abrasives, providing users with a fast and easy way to restore workpiece finishes to their original condition. To learn more about Standard Abrasives™ Mini-Brushes, see our Mini-Brush Flyer (PDF, 615 Kb).

Customer Reviews
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Large Volume Order

If you are considering a large purchase of this or other 3M Abrasive products our inside sales team is ready to help by providing additional information and options that our industrial customers typically seek when making abrasive procurement decisions. Our technical expertise, customer support, and global capabilities put us in a unique position to address your biggest challenges, and we’ll do our best to prove that we should be your abrasive supplier of choice.


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