Electronic Internal Caliper Gage This type of gage is perfect for measuring bores, internal grooves, and other hard to reach inside dimensions. Specifications include... 0.20" - 0.60" / 5-15mm Measuring Range 0.0002" / 0.005mm Resolution + 0.0012" Accuracy 0.787" Tip Arm Length 0.079" Tip Height 0.059" Tip Width .012" Radius Ball Contact Points 2.362" Diameter Display Features include... Display rotates 170° Functions include... Go / No Go Display, Data Preset, Min / Max, Abs / Incremental Data Output Furnished in fitted case