SPI Spherical Anvil Electronic Micrometer Spherical Face on Anvil, Flat Face on Spindle Features include... 1-2" / 25-50mm Measuring Range 0.00005"/0.001 mm Resolution 0.00016"/0.004 mm Accuracy Casting made with special clearance Carbide Sphere Face on fixed anvil Carbide Flat Face on spindle Painted frame with plastic heat shield Standard included above 0 - 1" Spindle dia.: 0.250" Inc./abs./inch/metric measuring Ratchet thimble Spindle lock Includes Certificate of calibration Furnished in fitted case ONLY 1 Unit available at this price!