Concise ruler Circular slide rule Machine tool 100867 NEW Japan

Concise ruler Circular slide rule Machine tool 100867 NEW Japan. Circular slide rule machine tools The slide rule is designed to calculate the main machining time when using a machine tool drilling machine, lathe, milling machine, tapering machine, etc. It is intended for engineers. Back: List of cutting speeds for mild steel and semi-steel cast iron Comes with a special storage case and instruction manual Details Size Diameter approx. 120mm Remarks Main material: Vinyl chloride Made in Japan.

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