Insize American Standard Thread Ring Gauge 3/8-24 UNF Class 2A NOGO Series 4121-3C2N 2301-10 🔹 Shape: Flame Shape –

🔹 Shape: Flame Shape – Ideal for controlled material removal and fine finishing

Thread Size: 1/4-28 UNF

The Mill-Thread Solid Carbide (MTZ) is a high-performance threadmill designed for general-purpose threading across a wide range of materials

Stable Performance: Maintains consistent edge condition and reliable chip evacuation across medium-to-roughing operations

and precision results in parting applications

Insize American Standard Thread Ring Gauge 3/8-24 UNF Class 2A NOGO Series 4121-3C2N 2301-10 🔹 Shape: Flame Shape –The Insize 4121 3C2N American Standard Thread Ring Gauge is a precision NOGO thread inspection gauge designed for checking external Unified Fine (UNF) threads to ANSI ASME B1. 2 standards. Engineered for accurate thread verification in machining, manufacturing, and quality control environments, this gauge ensures threaded components meet dimensional tolerance requirements for Class 2A external threads. Manufactured from high quality hardened tool