Proto Gauges

Make sure you always have the correct gauges on hand for all of your projects around the home, garage or shop. For nearly any project, accurate measurements are essential to produce the best possible end result. Our selection of gauges will help you make sure that you have the right measurements every time. Sometimes, if a gauge fails, you may need a replacement that will be compatible with your equipment. Browse our selection to find gauges for a variety of uses.

Welding Gauges

For welding applications, gauges are essential for monitoring the pounds per square inch (PSI) of the tool you are using. Choose a welding gauge with a large dial with dark markings on a white background for easy visibility. Our gauges feature brass fittings and aluminum dials for optimal durability.

Feeler Gauges

When you need to measure gap widths between two parts, a feeler gauge is an ideal solution. Our feeler gauges are made of durable metal and etched with both SAE sizes and their metric equivalents for ease of use.

Drill Gauges

Drill gauges are useful for identifying the sizes of drill bits as well as other small parts. Our drill gauges are made of tempered steel for extra durability and marked with SAE hole sizes and their metric equivalents for maximum convenience.

Tank Gauges

If you're getting ready for a big party and realize that the gauge on your balloon inflator tank isn't working, a new gauge will be necessary to properly monitor PSI. Our tank inflator gauges are easily installed with Teflon tape or an oxygen-safe compound.

Sheet Metal Gauges

Use a sheet metal gauge for determining the size of iron, steel and sheet metal. Our gauges are marked with weights in ounces per square inch, and designed to simply be placed around a sheet of metal for easy size determination.

Single Bar-Marking Gauges

When marking materials for cutting, a single bar-marking gauge is a useful tool. These gauges feature a die-cast head with a needle point to measure and mark materials to ensure an accurate cut every time.

Measuring Supplies

Make sure to browse our selection of measuring, leveling and marking tools for other supplies you will need for various projects. Replacement pieces, such as gauging tape refills and parts are an economical option over purchasing brand new tools when something wears out."