Patented Hex Wrench Handle Increases Torque 10x - 20x Industrial Strength Wrenches are Maunfactured to Exacting Standards Polished, Chamfered Hex Key Edges Give a Better Fit and Reduced Stripped Screws Wrench Sizes: Inch: 3/8", 5/16", 1/4", 7/32", 3/16", 5/32", 9/64", 1/8", 7/64" Metric: 10mm, 8mm, 7mm, 6mm, 5mm, 4mm, 3mm, 2.5mm, 2mm Lifetime Guarantee US Patent Nos: 5592859, 5911799, 6311587, D435415 D459967 6490954, 6763744 15216$16.95 ©2004 WAGIC Inc.