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Phonograph Needle Tip Maker

Set up and operate grinding machines to grind precious-stone tips.

What does a Phonograph Needle Tip Maker do?

Sets up and operates grinding machines to grind and polishes precious-stone tips of phonograph needles to specified point and finish: Mounts tip in holding shank, using tweezers, chemical dropper, and soldering iron. Sets up grinding wheel, dresses wheel with dressing tool, mounts shank containing tip in spindle or chuck, and grinds tip to form specified point, observing grinding under microscope or through loupe or viewing lens. Polishes tip on buffing wheel. May hold mounted tip against preset grinding wheel to do preliminary grinding. May examine finished tip for accuracy, using shadowgraph.