General description Sealey Premier Extra-Long Ball-End Hex Key Set includes 11 pieces designed for professional use. Manufactured from heat-treated and hardened Chrome Vanadium steel, these keys feature a fully polished finish and an anti-slip coating for enhanced comfort and control. The extra-long design allows for increased access in space-limited applications, while the ball-end enables driving at angles of up to 30°. Technical specifications Material: Heat treated and hardened Chrome Vanadium steel Key lengths: 90.5 to 231mm Contents: 1.5, 2, 2.5, 3, 4, 5, 5.5, 6, 7, 8, 10mm Other information Supplied in an easy-access storage case for safe storage and quick key selection Lifetime guarantee*