The Mayhew Tools 12-pc Torx Socket Bit Set, No. 16013, features a wide range of sizes that can be used with the appropriate ratchet, T-handle, or socket spinner handle allowing users the ability to fasten or unfasten common Torx screws. The design of the set allows for easy replacement of a broken or worn bit. The tips are sized appropriately to 1/4”, 3/8”, and 1/2” square drives for maximum torque and minimum damage to tip or fastener. The set includes a convenient storage rail that keeps all bits organized and easily accessible.