Insize 1123-150A, DIGITAL INSIDE KNIFE-EDGE CALIPER, .6-6″/15-150mm, 6928640302466

Resolution: .0005″/0.01mm.
Measure diameter of deep step holes.
Buttons: on/off, zero, inch/mm.
Automatic power off, move the digital unit to turn on power.
Battery CR2032. Data output.
Made of stainless steel.
Optional accessory: data output cable