Features
- Knotted wire construction for aggressive material removal
- Stainless steel wire material
- Designed for use with portable/mini grinders
- Fits a 5/8-11 arbor
- Suitable for removing weld scale, burrs and corrosion and for paint surface preparation
Specifications
| Size | 3 in |
| Arbor | 5/8-11 |
| Max Rpm | 12,500 |
| Wire Gauge (In) | 0.02 |
| Wire Gauge (Awg) | 24 |
| Material | Stainless steel |
| Pack Quantity | 1 |
| Weight | 0.81 lb |
| Part Number | WB504 |
| Upc | 000346175127 |
Related Tools
Related Articles
Knotted-wire cup brush intended for use with portable grinders. It is designed to remove weld scale, burrs and corrosion and to prepare surfaces for painting. Constructed of stainless steel and intended for operation up to its rated maximum speed.
Project Ideas
Business
Mobile Railing and Gate Prep Service
Offer on-site rust, scale, and paint removal for metal railings, gates, and fences. The 3 in, 5/8-11 cup brush on a portable grinder reaches spindles and corners quickly, leaving surfaces ready for primer. Price per linear foot with add-on priming.
Weld Cleanup for Small Fabricators
Partner with welders who need fast post-weld cleanup. Use the knotted brush to remove slag, spatter, and discoloration, prepping parts for finishing. Charge per seam length or per part with rush-turnaround premiums.
Equipment and Fleet Pre-Paint Prep
Prep trailers, plow blades, excavator buckets, and racks by stripping corrosion and loose coatings. Offer day-rate packages with optional primer application, reducing downtime for rental yards and contractors.
Patio Furniture Flip and Resale
Source rusty outdoor metal furniture locally, strip corrosion and old paint with the cup brush, then repaint and resell seasonally. Bundle sets and offer custom color upgrades for higher margins.
Marina and Stainless Maintenance
Provide corrosion removal and surface refresh for stainless rails, ladders, and fittings, plus carbon-steel dock hardware. Stainless wire reduces contamination risk; finish with passivation or protective coatings. Sell monthly maintenance contracts.
Creative
Patina-and-Polish Steel Wall Art
Use the knotted-wire cup brush to selectively strip scale and rust from sheet steel, creating bright highlights and directional textures. Heat or chemical patina the untouched areas, then clear-coat for contrast-rich industrial art panels.
Reclaimed Metal Furniture Refresh
Rebuild and refinish salvaged steel stools, tables, and shelves. The 3 in brush fits tight joints to remove weld scale and old coatings, leaving a toothy surface for primer and paint or powder coat for a like-new finish.
Garden Tool Revival
Restore vintage shovels, hoes, and pruning tools by stripping corrosion and burrs with the stainless knotted brush. Finish with a light polish, sharpen edges, and apply oil or wax to highlight age while making them functional.
BBQ Grill and Smoker Makeover
Bring old grills back to life by removing flaking paint, grease carbon, and rust from lids, grates, and frames. Prep to bare metal where needed and respray with high-temp coatings for a durable, clean look.
Upcycled Scrap Metal Sculpture
Assemble scrap steel into sculptures, then use the brush to vary surface finishes—mirror-like on focal elements and rough on background pieces. Seal with clear enamel for an industrial aesthetic.