Hole Gages

Hole gages are used to gage internal dimensions of bores that are either too small in diameter for an inside micrometer, and have greater economy than a bore gage or other precision internal gage.

Shop Hole Gages

Hole gages help determine the diameter of a hole. While their function is similar to bore gages, they are less precise, much simpler tools that require measurement of a transferred dimension. We offer several varieties of small hole gage sets as well as telescoping gages for larger holes. Our taper gages are inserted into a hole or slot, with the diameter determined by reading the tool’s etched scale.

Dial Hole Gages and Bore Gages are direct-reading tools for measuring holes. They eliminate the need to transfer measurements, and are far more productive in measuring holes, but at a higher price point.

Small Hole Gages

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 when this measurement requirement exists.

Telescoping Gages

Telescoping gages have retractable contacts to achieve a wider range and enables the user to maneuver around internal features and into position.

Taper Gages

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.

Dial Hole Gages

These hole gages will check hole diameters to .001" and 0.02mm. They are fast, accurate, easy to read and have a balanced design for easy one- hand operation.

Bore Gages

Used to measure the diameter and roundness of holes with high accuracy and repeatability, Bore Gages are available in a variety of models, including dial and digital options, and feature advanced measurement technologies and rugged construction. With their exceptional accuracy and ease of use, Starrett Bore Gages are widely used in industries such as manufacturing, machining, and mechanical engineering for precise and reliable measurements of bore diameters.