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 Benefits • 5° Increment • 12 point polygon head angled at 180° • Open end angled at 15° from handle axis • OGV profile maximizes contact surface with the nut for a longer lifetime • Made in forged chrome vanadium steel • High chrome finish • Packaged on a plastic storage rack Contents • 8mm Flexible Head Ratchet Spanner • 10mm Flexible Head Ratchet Spanner • 12mm Flexible Head Ratchet Spanner • 13mm Flexible Head Ratchet Spanner • 14mm Flexible Head Ratchet Spanner • 17mm Flexible Head Ratchet Spanner • 19mm Flexible Head Ratchet Spanner