Insize American Standard Thread Ring Gage 1/2–13UNC NOGO – Series 4121-1A1N Haron IPC32 Its multi‑flute design (typically 4

Its multi‑flute design (typically 4 flutes

Effective Sealing: Easy to insert and tighten using the wing nut and friction-free washers

Equipped with a heat-treated blade

Straight Flute Design – Enables consistent chip removal during tapping

Applications: External thread turning with vertical 60° profile geometry across broad pitch ranges

Insize American Standard Thread Ring Gage 1/2–13UNC NOGO – Series 4121-1A1N Haron IPC32 Its multi‑flute design (typically 4Insize American Standard Thread Ring Gage The Insize 4121 1A1N NOGO Thread Ring Gage is designed for accurate verification of external inch threads. Built to ANSI ASME B1. 2 standards, Class 2A, and supplied with a manufacturer inspection certificate, it ensures reliability in machining, tooling, and quality control applications. Specifications : Part No: 4121 1A1N Standard: ANSI ASME B1. 2 Thread Size: 1 213UNC Thread Class: 2A Type: NOGO Ring Gage