SPI Electronic Internal Caliper Gage This type of gage is perfect for measuring bores, internal grooves, and other hard to reach inside dimensions. Specifications include... 0.40" - 1.20" / 10-30mm Measuring Range 0.0005" / 0.001mm Resolution 0.0012" / 0.03mm Accuracy 1/16" Ball Contact Point 2.156" Arm Length 0.137" Tip Length 0.078" Tip Width Features include... Preset Origin for absolute measurement Origin data recall Absolute and incremental measurement Dial rotates +170° Auto power off Furnished in aluminum case Certificate of Calibration Ground shipping ONLY
