Go Plug Gauge 0.308-Inch Diameter ZZ Tolerance, Tool Steel Rc 60 To 64 Cold Stabilized, NIST Traceable Certificate Of Accuracy, Go Plus Gauge For Measuring Hole Lower Limits, Available 0.0040 To 1.0005 Inches

0.308-Inch Plug Gauge with ZZ Tolerance and NIST Cert
✔️ Range.0040 to 1.0005 in, tool steel Rc 60/64, 2 in long

This go plug gauge is a precision instrument used to verify the lower hole limit in drilled or machined parts, typically used in metalworking shops, quality-control labs, and calibration workflows.

✅ Range.0040 to 1.0005 in (increments.001")
✅ Class ZZ tolerance (.0002") for longer wear
✅ Tool steel 60/64 Rc, cold stabilized, for durability
✅ 2 in length; comes with a NIST-traceable certificate of accuracy
✅ Size marked with tolerance direction on sizes >.060"
✅ Sealed in a volatile corrosion inhibitor bag with rust preventative

💡 What is a go plug gauge used for?

A go plug gauge is a handy tool used to verify hole diameters and ensure minimum sizes in drilled or machined parts. - Checks hole minima to ensure parts stay within spec - Aids setup and inspection in metalworking environments - Often ships with a NIST-traceable certificate for accuracy - Covers the range from.0040" to 1.0005" with Class ZZ tolerance ✝️