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 certificate of calibration traceable to NIST states that these gauges have passed a test for accuracy.

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