This 1  - 2.5MM - ACME -4C DOALL THREAD PLUG GAGE 1.000 GO PD 9501 EXCELL COND is a top-quality tool for measuring threads in metalworking. It is made by the trusted brand DoALL and is designed to provide accurate readings. The gauge type is a thread gauge, and it is suitable for use in various metalworking applications. The manufacturer, DOALL, is well-known for producing high-quality inspection tools, and this thread plug gauge is no exception. It is perfect for use in business and industrial settings and is an essential tool for anyone who is serious about metalworking.