Accusize - 12'' x 0.001'' Precision Dial Caliper, Stainless Steel, in Fitted Box, P920-S212 Direct reading to 0.001" in large clear dial Measuring face hardened, precision ground and micro-lapped for absolute accuracy Satin chrome finish,crisp engraved graduations 4-way measurement: Inside, outside,and depth measurements Accurate to 0.001" per 6" Range: 0-12&#039;&#039; Resolution: 0.001&#039;&#039; Inside, outside,and depth measurements 0.100&#034; single revolution Direct reading to .001&#034; in large clear dial/.-100 Measuring face hardened, precision ground and micro-lapped for absolute accuracy Adjusting slide for fine adjustment Inside, outside, and depth measurements Satin chrome finish,crisp engraved graduations Clamp for repetitive setting Accurate to .001&#039;&#039; per 6&#039;&#039; Covered rack Deluxe case