Small hole gages have either split ball or full ball contacts. Since round ball contacts cannot accurately measure close to the bottom of a hole, split-ball contacts are used instead…
Telescoping gages have retractable contacts to achieve a wider range and enables the user to maneuver around internal features and into position.…
Taper gages are precision ground to a specific thickness which corresponds to a graduation on the side of the tool. Often used in slots and dimensioning recesses of parts.…