Insize 1179-1000, DIGITAL RTJ RING GROOVE CALIPER, inside diameter of RTJ ring groove .6-40″/15-1000mm, outside diameter of RTJ ring groove 1.2-40″/30-1000mm, 6928640394409

Resolution: .0005″/0.01mm.
Measure ring grooves of flange.
Button function: on/off, set, zero, inch/mm, data preset.
Battery CR2032. Data output.
Made of stainless steel.
Optional accessory: data output cable