Grey Pneumatic now has a 12-piece 1/4", 3/8" and +" drive Tamper-Proof Torx Driver Set for Impact or Hand tool use (Set No. 1235TT). The Tamper-Proof design allows access to special fasteners in a wide variety of automotive applications. The 1-piece design transfers torque to the fastener and Impact grade materials help to provide durability and longer tool life. Each driver features extra large size markings, carries a GP Lifetime Warranty and comes in a molded storage case.