Mount to a wall for easy access, and thread your fastener into holes or onto plugs for quick and accurate size identification.

Set includes calipers and gauges to identify external and internal threads

Find thread size, screw size, diameter, and drill bit size with one tool.

Identify threads per inch on external threads and find the center of your workpiece to line up thread cutting tools.

In addition to checking NPT and BSPT pipe sizes, use the two included gauges for measuring thread pitch.

Determine pipe size and inner and outer diameter.

Measure drill bit sizes with these identifiers.

These have a go gauge on one end and a no-go gauge on the other end.

A notch on the handle indicates when the internal NPT threads you’re checking are in tolerance.

Not only were these gauges calibrated in a lab, but they also come with a certificate that's traceable to NIST.

To ensure accuracy of NPT pipe thread measurements, these gauges include a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy.

Join two ring gauges with different sizes to quickly check if threads are within tolerance. Secure your gauges to these holders with the included fasteners.

Use these gauges to check the outside diameter of shafts, rods, and other cylindrical objects to determine whether they’re in tolerance.

Measure thread accuracy in screw-cutting operations. The anvil and spindle have a 60° point for fitting into thread grooves.