Product features
- For use with interchangeable ball-tipped anvil and spindle faces for measuring over-pin diameter of gears (sold separately)
- Vernier scale in metric units for taking precise outside diameter (OD) measurements
- Ratchet-stop mechanism helps provide uniform pressure for precise, repeatable measurement
- Satin chrome finish on thimble and sleeve helps resist rust and reduce glare
- Spindle and anvil locks to hold measurements in place
