* Carbide measuring face
* Ratchet stop
* Measuring tube thickness

* Ratchet stop
* Measure the height of contact

* Ratchet wheel load
* Adapt to measuring the fimension that is
not easy to measure

* Ratchet wheel load
* Disc measuring face can measure small
slot, it can also measure the length of gear
tooth tangent.

* Carbide measuring face
* Ratchet stop
* Used for measuring spline shaft,
groove and key groove.

* Carbide measuring face
* Ratchet wheel load
* Used to measure small
grooves, keyways, etc.