A must have for any shooter who has Torx's or star head screws/bolts on their bow. These are common on many bows today such as PSE, Elite, Strothers and more. Plus, like all of the Pine Ridge Archery wrenches, The Star Drive Wrench features a heavy duty, one piece construction with a slip resistant finish and custom bolt and nut assembly - no more loose tools. This set is Made in the U.S.A. and has top notch quality with 8650 industrial strength chrome vanadium tool steel to be 40% stronger than steel and will not rust or corrode. The Star Drive Wrench is made to be tough enough to handle your hardest jobs. Limited Lifetime Warranty not to strip out or round off the corners! Sizes include: T9-T10-T15-T20-T25-T27-T30-T40