Compact Balldriver L-wrench sets are perfect where a variety of tool sizes are required. All sets are packaged in our patented Bondhex tool case. Wrenches slip easily into individually marked slots and twist to lock securely in place. Only available from Bondhus, Protanium steel means these are the strongest ballpoint L-wrenches available. Product 15 Pc. Set (1.27 - 10mm) The key sizes of the set are - 1.27, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9 and 10mm.