Tube Micrometer with Spherical Anvil and Spindle, 0-1 Inch Range, 0.0001 Inch Graduation

Precision tube micrometer designed for measuring workpieces with concave-concave surfaces using spherical anvil and spindle for point contact and increased accuracy. Features a 0-1 inch measurement range with 0.0001 inch graduation and ±0.00015 inch maximum permissible error. Includes ratchet thimble, lever lock nut, and IP65-rated protection for dust and water resistance.