Insize American Standard Thread Ring Gage 1–8UNC GO – Series 4121-2A1 200x155x80 mm Waterproof Junction Box It is an ideal attachment

It is an ideal attachment for ensuring repeatable and accurate depth measurements in professional and industrial settings

Prevents dampness and mildew

The set includes 5 pieces for versatile use

75mm range for accurate reaming

Insize American Standard Thread Ring Gage 1–8UNC GO – Series 4121-2A1 200x155x80 mm Waterproof Junction Box It is an ideal attachmentInsize American Standard Thread Ring Gage The Insize 4121 2A1 GO Thread Ring Gage is built for acceptance inspection of external inch threads. Meeting ANSI ASME B1. 2 Class 2A standards and supplied with a manufacturer's inspection certificate, it ensures accurate, repeatable GO gauging in production and QA. Specifications : Part No: 4121 2A1 Standard: ANSI ASME B1. 2 Thread Size: 18UNC Thread Class: 2A Type: GO Ring Gage Material: Hardened tool steel