Product Specification
4" x 5/8"-11 Crimped Saucer Cup Brush - Carbon Steel
For broad metal cleaning where a standard cup brush does not give you the right approach angle, the 4" x 5/8"-11 Crimped Saucer Cup Brush - Carbon Steel combines flexible crimped wire with a low-profile saucer geometry that reaches into edges, corners, transitions, and angled surfaces more naturally. Built with 0.012" carbon steel crimped wire, it is designed for light rust, oxidation, surface deposits, and general cleanup on compatible ferrous metals.
The crimped wire construction provides a more flexible, conformable brushing action than knotted wire, making it well suited for general surface cleaning rather than maximum-aggression removal. The saucer-shaped profile changes the working angle compared with a conventional cup brush, helping the operator approach edges, corners, weld transitions, and adjoining surfaces without giving up useful surface coverage.
A 4" diameter, 5/8"-11 threaded arbor, and 12,500 RPM maximum rating make this a versatile grinder-mounted brush for fabrication, maintenance, repair, and surface preparation. It is especially useful when you want the coverage of a cup-style brush with better access into areas where a flatter standard cup geometry is less convenient.
Product Specifications
| Specification |
Details |
| Diameter |
4" |
| Wire Material |
Carbon Steel |
| Wire Diameter |
0.012" |
| Wire Style |
Crimped |
| Brush Type |
Saucer Cup Brush |
| Arbor |
5/8"-11 Threaded |
| Maximum RPM |
12,500 |
Features
-
4" saucer-shaped profile provides a different working angle than a standard cup brush
-
0.012" carbon steel crimped wire for flexible, controlled cleaning
- Saucer geometry improves approach into edges, corners, transitions, and angled surfaces
- More conformable and less aggressive than knotted-wire brushes
- Provides useful surface coverage while maintaining better edge access
-
5/8"-11 threaded arbor for direct spin-on installation
- 12,500 RPM maximum rating
- Excellent for light rust, oxidation, deposits, and general surface contamination
- Strong choice for fabrication, maintenance, repair, and surface preparation
Applications & Performance
The crimped saucer cup brush is built for broad surface cleaning with improved access around edges and transitions.
Common applications include:
- Light rust removal
- Oxidation cleanup
- Surface contamination removal
- General steel cleaning
- Cleaning edges and corners
- Cleaning around weld transitions
- Light weld-area cleanup
- Cleaning fabricated assemblies
- Cleaning angled and adjoining surfaces
- Removing light deposits
- Preparing surfaces before painting or coating
- General maintenance and repair work
The saucer geometry gives the operator a different approach angle than a standard cup brush, making it easier to work into edges, transitions, and corners while still maintaining a useful cleaning footprint.
Use light to moderate pressure and let the wire tips do the cleaning.
Materials
Recommended for cleaning and surface preparation on compatible ferrous materials, including:
- Carbon steel
- Mild steel
- Structural steel
- Cast iron
- Wrought iron
- Other compatible ferrous metal surfaces
Keep carbon steel brushes dedicated to ferrous work when cross-contamination matters. For stainless-steel applications where iron contamination must be minimized, use a dedicated stainless steel wire brush.
Machine Compatibility
Use this 4" saucer brush on a compatible angle grinder with a 5/8"-11 spindle, adequate brush capacity and a maximum speed no greater than 12,500 RPM. Match the actual hub seating and allow room for wire flare.
Compatible examples include:
-
Benchmark Abrasives BMT-AGBC4570_1 — 4-1/2" corded angle grinder; 5/8"-11 spindle; 11,000 RPM.
-
Milwaukee® 2880-20 — 4-1/2" / 5" angle grinder; 8,500 RPM.
-
Milwaukee® 2881-20 — 4-1/2" / 5" angle grinder; 8,500 RPM.
Othe machines may be compatible. Use the manufacturer-specified wire-brushing setup and guard, with secure hub engagement and adequate operating clearance. Other grinders meeting these requirements may also be suitable.
Safety Tips
- Never exceed the brush's 12,500 RPM maximum speed.
- Confirm the grinder is designed to safely accommodate this brush type and diameter.
- Make sure the 5/8"-11 threaded arbor is fully seated and secure before operation.
- Verify adequate guard and operating clearance for the saucer-shaped brush.
- Inspect the brush before every use and replace it if damaged, excessively worn, loose, or distorted.
- Wear proper PPE, including eye and face protection, hearing protection, gloves, appropriate clothing, and respiratory protection when required.
- Keep bystanders away from the work area and direction of rotation.
- Use light to moderate pressure. Excessive force can flatten the crimped wire and accelerate wire fatigue.
- Allow the grinder to reach operating speed before contacting the workpiece.
- Follow all operating and safety instructions for both the power tool and wire brush.
