A professional who tends machine that extracts core pipe from interior of tubular castings. Respnsibilities include:

• Strikes end of core pipe with sledge to loosen baked sand between casting and core pipe.
• Inserts end of core pipe through holding block and secures pipe between jaws set on dolly.
• Starts machine that pushes and pulls dolly along tracks, pulling out core pipe while casting strikes against holding block.
• Cleans casting, using airhose and wire brush.