INSIZE Electronic Back Jaw - Edge to Center Caliper This unique gage allows you to measure edge to centerline distances. Features include... 0.2" - 12" / 5.5 - 300mm Measuring Range 0.0005" / 0.01mm Resolution + 0.0039" Accuracy 0.4" Bottom Jaw Diameter 0.984" Back Jaw Length Buttons: zero, power on/off, in/mm, preset Data Output Hardened stainless steel Includes plastic box