Features and Benefits:IMPACT BALL Torsion Technology for High Power Impact Drivers, Special Torsion Deign for using with Bit Holders as well as directly inserting into Power Tools, High wear-resistance and durable bit made by VoHA material, High wear-resistance and durable bit made by VoHA material, Highest Hardness 62HRC by in-house optimum heat treatment, Magnetized Tip, Made in Japan by VESSEL, VESSEL's original Phillips tip profile for best fitting especially with Japanese (JIS) screws;Impact Ball Torsion Bits PH3X30 2PC (Carded)