Core size is the measurement of the hole on the inside of the grip that goes over the butt end of the shaft. This putter grip has a .580" core size which is designed to match up with a .580" butt diameter shaft, which traditionally has been the butt diameter of most putter shafts. You can install a .580" core size grip on a .600" butt diameter shaft. The grip will measure .015" larger in diameter. The OD (outside diameter) of the Mega grip measure 5" around which is similar in diameter to the Super Stroke 5.0 grips. A mid size grip like the Super Stroke 3.0 measures just under 4" OD.
Date published: 2016-06-21