13D424 - Walter 4-Inch Crimped Wire Cup Brush with Safety Ring, 5/8-11 Arbor

Extended Life and Superior Safety in Surface Cleaning

The Walter 13D424 4-inch Crimped Wire Cup Brush represents a significant advancement in mechanical cleaning technology, designed specifically for industrial environments where efficiency and longevity are paramount. This tool is engineered with Walter's signature attention to detail, utilizing premium oil-hardened carbon steel wire that resists fatigue and breakage even under sustained loads. The defining feature of this model is its innovative safety supporting ring, a mechanism that addresses the most common issue with wire cup brushes: premature flaring.

In standard operation, centrifugal force and applied pressure cause wire bristles to splay outward, reducing their effectiveness and leading to rapid wear. The 13D424's supporting ring constrains the bristles, maintaining a tight, dense face that delivers consistent cleaning action on steel surfaces. This control allows for precise removal of rust, paint, scale, and corrosion without gouging the base material. The crimped wire configuration offers a degree of flexibility, making it an excellent choice for light-to-medium duty cleaning where surface finish is a concern, as opposed to the aggressive removal of knotted brushes.

The true value of this brush is realized when the initial wire length wears down. Instead of discarding the tool, the operator can simply remove the supporting ring, instantly exposing a fresh length of wire that was previously protected. This "double-life" capability drastically improves the cost-per-use ratio and reduces the frequency of inventory replenishment. Compatible with standard 5/8"-11 angle grinder spindles, this brush is perfectly balanced to ensure smooth operation, minimizing vibration transfer to the operator and protecting power tools from bearing wear. It is an essential asset for fabrication shops, maintenance departments, and structural steel operations.