PB Swiss Tools PB-410.H6-45 Short Torx&copy; Key L-wrench Set (T6-T45) Set includes Torx Key bits sizes T6, T7, T8, T9, T10, T15, T25, T27, T30, T40, & T45. Designed for awkwardly positioned screws and safe, injury-free work. PB's spring steel, despite a hardness of 58-60HRC, allows toughness/elasticity in its hex keys. All PB Swiss Tools are 100% Swiss-made. Every PB Swiss Tools product comes with an unlimited lifetime guarantee.