Greenslade and Company’s Tru-Cntr™ makes indenting both ends of a bolt on its true center fast and easy. The unique Tru-Cntr™ fixture design incorporates a 3-Jaw chuck that can adjust to hold upto 8” diameter fasteners with a hardened steel centering punch for quick and accurate center marking.  The Center marks are then aligned with a Greenslade Elongation Gage for easy length measurements when checking for bolt elongation limits.