Expert Flexible Head Ratchet Spanners have an OGV profile which creates maximum surface contact with nuts for a longer lifetime. They are made from chrome vanadium steel with a high chrome finish. This set contains seven metric sizes and a plastic organiser. ISO 691 ISO 1711-1. Features and Benefits5° Increment12 point polygon head angled at 180&degOpen end angled at 15° from handle axisOGV profile maximizes contact surface with the nut for a longer lifetimeMade in forged chrome vanadium steelHigh chrome finishPackaged on a plastic storage rack Contents8mm Flexible Head Ratchet Spanner10mm Flexible Head Ratchet Spanner12mm Flexible Head Ratchet Spanner13mm Flexible Head Ratchet Spanner14mm Flexible Head Ratchet Spanner17mm Flexible Head Ratchet Spanner19mm Flexible Head Ratchet Spanner