VERMONT GAGE 461107030 Pipe Thread Ring Gauge, 1/2 Inch - 14 Thread Size, Go/No-Go, Plus/Minus Gauge, NPSM

Vermont Gage 1/2-14 NPSM 461107030 ring set is used to inspect exterior fastener threads in either metric or Unified (inch) thread standards. It is ideal for checking standard pipes and fittings.

Features:

• Vermont Gage 1/2-14 NPSM 461107030 ring set has Go / No-Go gauges to perform pass / fail tolerance tests.
• It features solid tool steel construction with uncoating to let users know when the gauge might need to be replaced.
• This Class X tolerance unit has heat-treated RC 60 / 62 hardness.

Standards and Approvals:

• ASME B1.20.1
• NIST

Frequently Asked Questions:

Q. What is the difference between plus and minus pin gauges?

A. A minus pin gauge set consists of pins with a tolerance less than the goal size, allowing the pin to fit inside the target dimension. Whereas a bore at the goal dimension is impossible with a plus pin gauge set which has pins with a defined tolerance above the target dimension.

Q. What does class X tolerance mean?

A. It means that the gauge has an inch tolerance of 0.00004 inches and a Metric tolerance of 0.001 mm.

Q. What is the difference between Go and No-Go gauges?

A. While No-Go gauges measure the higher tolerance, Go gauges measure the lower.