Broken dip stick tube

5/16-18 NC tap, at least 24 inch length of 5/15 all thread rod, about 8 inches of 1 inch schd 80 black pipe, a couple of fender washers and nuts. These are the tools I have specificly for this task. I even magnetized the tap. That and bearing grease in its flutes all everything we can do to keep the clips out of the engine. The tap doesn't create a full thread or create a lot of chip. You'll need a inch or more thread depth with your tap
so the all thread doesn't strip them out. A long 3/8 drive extension upside down will drive the tap.