Everede 50537 BBS-250/1000 1/4 X 1"" B-BAR SLEEVE

Holders are flatted for quick set-up. Easy centerline location. Precision ground for accuracy. May be used to extend boring bar reach. ID's range from 3/16" to 3/4"; OD's range from 1/2" to 1-1/2". Can also be used as an end mill holder.