Product Description
Milwaukee 3 in. Knot Wire Cup Brush — Stainless Steel
Model Number: 48-52-5050
The Milwaukee 48-52-5050 is a 3 in. Knot Wire Cup Brush in stainless steel wire for use with 3 in. and 4-1/2 in. angle grinders — a surface preparation brush for cleaning, descaling, and deburring stainless steel, aluminum, and non-ferrous metal surfaces where iron contamination from carbon steel wire must be avoided. The stainless steel wire specification is critical when working on stainless steel and aluminum surfaces — carbon steel wire deposits iron particles into the work surface during brushing that can cause rust staining on stainless steel and contaminate aluminum surfaces for welding and anodizing applications where a clean, uncontaminated surface is required for the subsequent process. Milwaukee's stainless steel wire brushes provide the aggressive knot wire cleaning action for production surface preparation work while maintaining the material purity required for stainless steel and non-ferrous metal applications.
The knot wire construction twists multiple wire strands into cable knots that deliver concentrated high-impact contact points rather than the broad, gentle contact of individual fine wire strands — providing the aggressive abrasion needed to cut through surface contamination, light scale, and weld discoloration that lighter wire brushes remove slowly. The cup profile concentrates all wire knot ends toward a flat face for maximum surface cleaning aggressiveness per grinder pass. Always operate within the rated RPM, use appropriate face shield, and wear PPE for wire brush work with angle grinders.
See Milwaukee's complete wire brush lineup for all available stainless steel and carbon steel wire brush sizes and profiles for every surface preparation application.
Features
- Stainless steel wire prevents iron contamination on stainless and non-ferrous surfaces
- Knot wire for aggressive cleaning of scale, weld discoloration, and contamination
- 3 in. cup profile for maximum surface cleaning aggressiveness per grinder pass
- For stainless steel, aluminum, and non-ferrous metal surface preparation
- Carbon steel wire available when iron contamination is not a concern
Specifications
- Diameter: 3 in.
- Profile: Cup
- Wire: Stainless Steel, Knot
- Application: Stainless Steel, Aluminum, Non-Ferrous Metal Surface Preparation
Includes
- (1) Milwaukee 48-52-5050 3 in. Knot Wire Cup Brush — Stainless Steel
