TONE Impact Inner Socket, 4A-17BA, 12.7mm (1/2") Drive, 17mm Width

This socket is designed specifically for fastening and removing inner nuts on buses and trucks. Available in sizes suitable for medium- to large-sized vehicles. Use: Socket designed specifically for fastening and removing inner nuts on buses and trucks. Drive size: 12.7 mm (1/2 inch) Shape: 4-sided Width across flats: 17 mm Total length: 54 mm