- Double action and self-centering for quick checking of inside measurements.
- Satin chrome finish.
- Constant spring tension for uniform feel.
- Contact point ends are hardened tool steel and precision ground on a radius of the smallest hole the gauge will enter.
5/16″ to 1/2
1/2″ to 3/4″
3/4″ to 1-1/4″
1-1/4″ to 2-1/8″
2-1/8″ to 3-1/2″
3-1/2″ to 6″
