This is a Dead Center Hole Locator for Locating Engine Mounting Holes.
Great Planes Dead Center Hole Locater is a tool that should be in every
modeler's toolbox. The tool is extremely easy to use. Simply press its self-
centering alignment cone into the mounting hole with the engine positioned on
the motor mount, and give the handle a few turns, the sharp drill tip leaves
perfectly centered marks every time!
INCLUDES: One dead center hole locating tool, with drill size guide on back of
One clear protective plastic tube
SPECS: Tool is 6.75" in length to reach into cowls.