Bidspirit auction | A Set of 10 Proto

A Set of 10 Proto Professional SAE Hex Bit Sockets in Metal Case - This set consists of 10 hex-head socket bits produced by Proto Professional. The tools are constructed with chrome-plated steel socket bodies and black-oxide finished tool steel hex bits. The collection includes a mix of 3/8-inch and 1/2-inch drive sizes. Visible markings on the sockets include the Proto logo, the word PROFESSIONAL, and various fractional SAE sizes including 9/16, 1/2, 5/16, 1/4, and 3/16. The tools are housed in a vintage red painted steel carrying case equipped with a white plastic organizer tray.