Clarke's 'Pro' use security torx key tool set has eight chrome vanadium steel blades, all of which conveniently fold into the ergonomically shaped handle. It also has a reassuring lifetime guarantee, & robust build quality for long service life. Key sizes - T9, T10, T15, T20, T25, T27, T30 & T40. Rubberised soft grip handle for comfort & control. Keys fold into handle when not required for conveniently compact storage. Satin finish to blades ensures long term corrosion resistance.