Size : 8mm The ring end features the innovative Ring Stop system that prevents fasteners from going through or slipping off the wrench whist the open end features anti slip jaw design preventing slippage Compact I-Beam shaft profile ensures comfort and allows the user to apply higher torque for longer periods These high performance spanners are suitable for aircraft fasteners with an integral reversing lever which avoids any risk of accidental reversal, Weight: 0.03 Pounds, Manufacturer: Facom