Weiler Roughneck Max 4 inch stringer bead wheels deliver unmatched weld cleaning performance by maximizing life, efficiency and consistency. The 4 inch brush is recommended for cleaning root pass welds, surface prep and other cleaning applications with a right angle grinder. Features The standard for high performance weld cleaning brushes Narrow face brushes are suitable for cleaning root and hot passes and reaching into corners Wider face wheels can be used for cleaning filler and cap passes as well as for other surface prep and cleaning applications Improved feel and comfort during use makes brush operation effortless Stronger, sharper wire delivers consistency and performance you can count on Unmatched cleaning power compared to competitors The operator can apply less pressure to clean, letting the wire do the work Prop 65 WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to:www.P65Warnings.ca.gov Specifications Country of Origin: United States of America Industry: Fabrication | Pipeline Application: Cleaning | Deburring Marketing Application: Multi-Pass Material Application: Steel Performance: Max Performance Compatible Tool: Right Angle Grinder Fill Material: Steel Length: 4.0500 Inches Width: 4.0500 Inches Height: 0.7500 Inches Standard Pack Quantity: 5 Maximum RPM: 20000 Arbor Hole Size: 5/8 IN-11 UNC Face Width Dim: 3/16 IN Fill Diameter Dim: 0.020 IN Trim Length Dim: 7/8 IN