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"The cutting-tool in a screw-cutting machine; a screw-plate." -Whitney, 1911

Screw Cutting Die

"The cutting-tool in a screw-cutting machine; a screw-plate." -Whitney, 1911

A section of a screw-cutting die.

Screw Die Section

A section of a screw-cutting die.

"A handle for holding the threaded die by which the thread is cut on a bar, a nut, or a pipe; a die-stock; a screw-plate." -Whitney, 1911

Screw Stock

"A handle for holding the threaded die by which the thread is cut on a bar, a nut, or a pipe; a die-stock;…

"Jewelers' box of dies, stocks, and taps (called a screw-plate set." -Whitney, 1911

Screw-Plate Set

"Jewelers' box of dies, stocks, and taps (called a screw-plate set." -Whitney, 1911