General description Sealey AK6143 Premier Jumbo Hex Key Set includes 10 pieces manufactured from heat-treated and hardened Chrome Vanadium steel with a matt chrome finish. This set is designed for industrial and agricultural applications, featuring extra-long keys that provide enhanced leverage and reach. Technical specifications Material: Heat-treated and hardened Chrome Vanadium steel Finish: Matt chrome Key sizes: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 14mm, 17mm Key lengths: 130mm to 340mm Model No.: AK6143 EAN: 5024209354462 Compatibility and accessories Supplied in a tough storage case Other information Lifetime guarantee* Part of a comprehensive range of Premier Hand Tools suitable for daily professional use