The Britool combination spanners (metric) are crafted in chrome vanadium steel and finished in high chrome.The ring spanner end has a 12-point OGV® profile angled at 15° , maximising the contact surface with the nut for a longer lifetime. The open end is angled at 15° from the handle axis.ISO 691 - ISO 1711-1 - ISO 3318 - ISO 7738 - DIN 3113.Select Option 10mm11mm12mm13mm14mm15mm16mm17mm18mm19mm20mm21mm22mm23mm24mm25mm26mm27mm28mm29mm30mm32mm34mm36mm38mm5.5mm5mm6mm7mm8mm9mm Add to Basket Quantity