https://sovietunionussr.com Mon, 03 Aug 2026 06:00:40 +0000 en-US hourly 1 https://wordpress.org/?v=4.1.1 https://sovietunionussr.com/new-ussr-precision-machinists-square-400x250-mm-class-2/ https://sovietunionussr.com/new-ussr-precision-machinists-square-400x250-mm-class-2/#comments Fri, 10 Jul 2026 05:08:57 +0000 https://sovietunionussr.com/new-ussr-precision-machinists-square-400x250-mm-class-2/






For sale is a rare New Old Stock (NOS) Soviet precision checking square (??????????????????)?? 400×250?? . This is a heavy-duty professional tool made in the USSR according to GOST 3749-77 standard. It features a wide, stable base and is designed for high-accuracy checking and marking of 90° right angles in metalworking, machining, assembly, and sheet metal work. Type :?? (wide base machinist square). Size : 400 mm (blade height) × 250 mm (base). Material : High-quality tool steel (hardened). Condition : Brand new, never used, stored for decades. Comes wrapped in original protective covering with full original technical documentation (passport) and wooden storage elements/box parts. The tool is in excellent cosmetic and functional condition – the surfaces show typical storage patina/protective coating but no damage, rust, or wear. Perfect for professional workshops, tool collectors, or anyone who appreciates Soviet-era precision instruments. These large Soviet squares are sought after for their robustness, accuracy, and historical value. They were made to strict military/industrial standards and often outperform many modern consumer-grade tools.

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