Limited Quantities Available! - General's UltraTest Electronic Digital Caliper incorporates the latest advances in microchip technology to deliver unwavering accuracy when taking inside, outside, depth and step measurements. The ground and lapped measuring faces offer a range of 6” and are accurate to .001”. An innovative inch/metric switch allows you to make seamless conversions on the fly without re-zeroing. The “Floating Zero” feature compensates for caliper wear and eliminates the need for recalibration of the tool. The UltraTest Electronic Digital Caliper is made of hardened and ground stainless steel with a satin chrome finish, and includes a fitted case for storage.