Insize 1129-300WL, DIGITAL DEEP HOLE INSIDE GROOVE CALIPER, 0-12″/0-300mm, built-in wireless, 6928640392535

Resolution .0005″/0.01mm
Measure diameter of grooves inside deep holes
Buttons: on/off, set, inch/mm, preset(+,-)
Automatic power off, move the digital unit to turn on power.
Battery CR2032. Data output.
Made of stainless steel.