Shipyard Memories #16: Boring Bars and Custom Castings
One of the interesting tools that find a regular use in building boats is the boring bar. After the hull is finished and the time comes to install the engine and associated equipment one of the first jobs is to install the stern tube, the passage through which the shaft will penetrate the hull. It must be perfectly aligned with the output shaft of the engine but often must be drilled at an oblique angle to the skin of the hull. This challenge is overcome with a boring bar. It is simply a piec...
