SPI Dial Test Indicator Set Features Include... 0.008" Measuring Range 0.0001" Graduation 0-4-0 Reading 1-1/4" Dial Dia. Horizontal type Satin Chrome Finish Contact Point pivot + 100° Dovetail Stems: 8mm & 3/8" dia Fitted Case Certificate of Calibration Test Indicator Set includes... Indicator 2 Contact Points Universal Clamp & Height Gage Bar 5/32" & 3/8" diameter Dovetail extensions