General description Sealey Siegen Imperial Extra-Long Ball-End Hex Key Set includes 9 pieces manufactured from heat-treated and hardened Chrome Vanadium steel with a blackened finish. The ball-end design allows the keys to drive fixings at angles of up to 30°, making them versatile for various applications. This set is supplied in an easy-access case with a hanging tag for safe storage and quick key selection. Technical specifications Material: Heat treated and hardened Chrome Vanadium steel Finish: Blackened Key lengths: 90mm to 230mm Key sizes: 1/16" to 3/8" Contents: 1/16", 5/64", 3/32", 1/8", 5/32", 3/16", 1/4", 5/16", 3/8" Other information Lifetime guarantee* Model No: S01099 SIEGEN BY SEALEY - Part of the Siegen by Sealey range of quality tools at competitive prices.