Weiler 1/4″ Miniature Wire End Brush contains fine crimped wire fill for light-duty cleaning and deburring very small recessed areas or ID’s. 1/8″a stem for use on flexible shaft tool and high speed pencil grinders. Fine crimped wire fill for light duty or deburring in very small recessed areas or ID’s. For use on high speed electric rotary tools and air powered pencil die grinders. . . .