Stahlwille603834 40030607 10 6 X 7 Double-ended Open Ring Spanner 6 - 7 mm - Stahlwille 40030810, Design according to DIN 3110 and ISO10102. Made from chrome alloy steel, chrome-plated surface. Stahlwille 40030810 10 8 X 10 Double-ended Open Ring Spanner 8 - 10 mm