Brush is for use in portable tools. Compact brushes are shaped for hard-to-reach areas. Use for carbon cleaning; I.D. pipe cleaning; die, mold, and tool cleaning and polishing; and rust and paint removal. For light-duty brushing applications. This brush is recommended for stainless steel, aluminum, and nonferrous alloyed metals. This listing is for each. Technical Specification Item End Brush Item - End Brushes End Brush Bristle Type Crimped Wire Brush Dia. 3/4' Abrasive Shank Size 1/4' Wire Dia. 0.006' Bristle Trim Length 7/8' Abrasive Material Coated Steel Max. RPM 22, 000 Overall Length 2-1/4'