This is a genuine DLE Propeller Drill Guide made of high quality heavy steel that can be used to perfectly drill your props and spinners for the DLE 30, DLE 35RA, DLE40cc  Gasoline Aircraft Engines.

Simply mount the drill jig on the back side of the prop. Orientate the blade tips 9 and 3 o'clock - or horizontal to the ground. Tighten the bolt so the fixture can not move. Drill your prop from the back side or mounting side.