Professional tool for commercial or occasional use Manufactured from chrome vanadium steel for strength and durability Flexible combination spanner set (so one side is an open ended spanner and the other is a flexible socket) Perfect for access into hard to reach awkward areas Sockets are a twelve point design / bi hex socket. SET Includes; SIZES 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm & 19mm. Complete in a tool roll for easy storage and transportation. Vat receipt included