Insize American Standard Thread Plug Gauges – No. 12-24 UNC 3203-10A Its rigid 20 mm shank

Its rigid 20 mm shank and precision-ground tool seat provide superior accuracy

Fits most cartridges

Centre-Cutting Tip – Suitable for plunge milling and pocketing operations

Body Diameter (BD1): 48mm

Insize American Standard Thread Plug Gauges – No. 12-24 UNC 3203-10A Its rigid 20 mm shankInsize 4131 121 GO NO GO Thread Plug Gauge No. 12 24 UNC, Class 2B The Insize 4131 121 GO NO GO thread plug gauge is a precision inspection tool used to verify internal No. 12 24 UNC threads in accordance with ANSI ASME B1. 2 standards. It provides a quick and reliable pass fail check to ensure threads are manufactured within the correct size, pitch, and tolerance. Supplied with both GO and NO GO gauges combined in a single handle, the 4131 121 is