Bondhus Hex Key Set L-Wrench - 13 Piece Imperial (0.050-3/8") Ball End BD1093713 Piece Imperial Ball End L Wrench Hex Key Set Sizes: 0. 050, 1 16, 5 64, 3 32, 7 64, 1 8, 9 64, 5 32, 3 16, 7 32, 1 4, 5 16, 3 8" Ball End saves time by quickly funnelling tool into screw. 25 angle allows natural hand and wrist movement. Superior Ball End strength and working angle Works in hard to reach places Ball End Tips 25 working angle for quick funnelling into screw Up to 20% stronger, with more torque and higher wear resistance than standard