Product Description
Milwaukee 3-1/2 in. Crimped Wire Cup Brush — Carbon Steel
Model Number: 48-52-5065
The Milwaukee 48-52-5065 is a 3-1/2 in. Crimped Carbon Steel Wire Cup Brush for use with angle grinders — a surface cleaning and preparation tool for removing rust, scale, weld spatter, paint, and surface contamination from steel and ferrous metal in welding preparation, fabrication, and maintenance applications. The compact 3-1/2 in. diameter fits standard 4 in. and 4-1/2 in. angle grinders via the 5/8 in.-11 threaded arbor and is sized for applications where the full 4 in. cup brush is slightly too large for the available working clearance or where the 3-1/2 in. diameter's lighter rotational mass improves grinder handling on one-handed or overhead cleaning work. The cup shape provides the simultaneous bottom surface and sidewall contact geometry that makes cup brushes efficient for cleaning weld joint areas, pipe and tube surfaces, irregular metal profiles, and outside corners where the flat wire wheel's single-plane contact would require multiple passes from different angles to achieve complete coverage.
Crimped wire construction uses individually crimped wire filaments that flex at the crimp points during contact with the work surface, providing a spring-like compliance that allows the wire tips to conform to mild surface irregularities and maintain consistent contact pressure without the aggressive gouging action that knot wire brushes produce on softer base metals or lighter-gauge materials. Carbon steel wire delivers the cleaning performance needed for general rust removal, light scale removal, and surface preparation on carbon steel and ferrous metal structures where iron contamination of the work surface is not a concern. Always operate wire cup brushes within the rated RPM for the specific brush and never exceed the grinder's rated speed — proper face shield protection rated for wire wheel operation is required for all wire brush applications.
For stainless steel cleaning where iron contamination must be avoided, Milwaukee offers stainless steel wire cup brush versions — for more aggressive knotted wire cleaning action, Milwaukee's 48-52-5067 knot wire cup brush provides higher impact force per contact.
Features
- Cup shape for simultaneous bottom and sidewall cleaning coverage on 3D surfaces
- Crimped wire for spring-like compliance on irregular surfaces without aggressive gouging
- 3-1/2 in. diameter for tight-clearance cleaning and lighter rotational mass overhead work
- Carbon steel for rust removal, scale, and surface prep on ferrous metal structures
- 5/8 in.-11 threaded arbor for standard 4 in. and 4-1/2 in. angle grinder mounting
Specifications
- Diameter: 3-1/2 in.
- Shape: Cup
- Wire: Crimped Carbon Steel
- Arbor: 5/8 in.-11
Includes
- (1) Milwaukee 48-52-5065 3-1/2 in. Crimped Wire Cup Brush — Carbon Steel
