INSIZE Electronic Centerline Caliper Features include... 0.4" - 8" / 10.5 - 200mm Measuring Range 0.0005" / 0.01mm Resolution + 0.0035" Accuracy 0.4" Bottom Jaw Diameters For measuring hole center distance in same or offset plane Buttons: zero, power on/off, in/mm Data Output Hardened stainless steel Includes plastic box