3x 5/8-11 Knotted cup brush?? carbon steel?? Knotted wire is for heavy material removal</br>Adds Extra shine to your product</br>Manufactured in China</br>Constructed with internal holding plate</br>Plate ensures consistency and safety</br>Wire is 100-percent inspected</br>Meets demanding quality specifications</br>Provides even balance and smooth performance</br></br>Product Description</br></br>3"ameter for 4-1/2" to 5" angle grinders. Recommended for DeWalt angle grinder Nos.DW400?? DW402?? DW814?? DW458 and DW830. For heavy material removal.</br><br/>http://www.amazon.com/gp/product/B00004RHALaa