Slot centerlines, center marks, and callouts

Counterbored screw slot router bits counterbore slot callout In this article, we'll define counterbore holes, explain when to use a counterbore, and describe how to call out a counterbore hole in your counterbore slot callout In this article, we'll define counterbore holes, explain when to use a counterbore, and describe how to call out a counterbore hole in your

slot win cash Use this chart to find out what size counterbore hole to use for your ANSI Inch socket cap head screws and bolts