【Highest Quality Standard】Vernier caliper finely polished stainless steel frame with knurled roller and locking screw to ensure smoothness and precise position during use. Using hardened process, no rust, more durable, longer service life 【Precise Measurement】Digital caliper measures up to 6"/150mm with an accuracy of 0.01mm. This allows you to set zero and start a new measurement at any point on the scale and instantly convert between inches/millimeter with just the press of a button With 4 measuring functions, inner diameter, outer diameter, depth and scale 【Extra LCD display. wide】Digital caliper with a large, easy-to-read LCD screen that makes reading results clearer. Readings can be displayed in inch or millimeter format Dust and oil proof 【Versatility】This caliper. professional digital measures inside, outside, depth and pitch with two sets of jaws and the probe With the zero button, we can reset the value during measurement to have more flexibility of use 【Bonus】 Foot digital slider is equipped with an LR44, 1.5V button cell battery and is delivered with an additional button battery. This caliper is CE certified. Digital gauges equipped with an automatic on/off function, so your battery doesn't run out upon arrival. Home and professional use is strongly recommended