UDTEE iTor New/Durable Extra Long Size Torx Pattern Arm Ball Chrome Vanadium Steel Metric Hex Key Wrench Tool Set,Set of 9 Heat treated chrome vanadium steel Precisely-sized, chamfered ends insert smoothly into fastener head, reducing wear Ball hex ends allow up to a 25-degree entry angle to reach around obstructions Bit Size:T10,T15,T20,T25,T27,T30,T40,T45,T50 Limited Lifetime Warranty