The Two Step High Speed drill bit is used to drill the proper size hole for plunger bolts in screen frame. The Two Step High Speed drill bit has a 7/32" shank steps down to an 1/8". This handy drill bit allows you to drill both sizes of holes needed for the installation of plunger bolts in a single operation.
1 Review Hide Reviews Show Reviews
Two step drill bit
This was just what I needed for attaching the screens to the windows, Drill bit worked great. Made a jig so I could drill straight. Had the screens done in no time.