Dasqua 0-12.7mm/0-0.5″ 0.01mm/0.0005″ Digital Indicator ~ On/off, inch/mm & ABS/Preset. ~ Contact point is M2.5 x 0.45. ~ Stem diameter is 8mm. ~ Flat back. ~ Copper sleeve and rod precisely ground to reduce vibration. ~ Glass scale for high accuracy and stable performance. ~ Case made of high-strength aluminum alloy. ~ Temperature and humidity tested, ensuring repeatability and reliability in harsh environments. ~ Calibration certificate provided with total forward error, hysteresis error, total error and deviation error. ~ Supplied in a fitted case. On/off, inch/mm & ABS/Preset. Contact point is M2.5 x 0.45. Stem diameter is 8mm. Glass scale for high accuracy and stable performance. Calibration certificate provided with total forward error, hysteresis error, total error and deviation error.