Extended Upper Jaw Inside Groove Digital Caliper Deep Hole

Picture is for reference.  The scale color may be different. 

-The extended upper internal groove measuring jaw is convenient for measuring the internal groove size in deep holes;

- Grooved sounding rod, used to measure the position and size of grooves in deep holes;

- Any position can be cleared to facilitate the conversion between relative measurement and absolute measurement;

- Any position metric and imperial conversion.

Specification: 

Range: Upper Jaw: 7-150mm Inside

             Outside Jaw: 0-150mm

Resolution: 0.01mm

Upper Jaw Length: 40mm