TX40X MRO Insert Bits for T-40 Torx® Recess, 1/4” Hex Drive are ideal for maintenance, repair, and operations (MRO) applications, providing a secure fit and reliable performance. Designed to withstand the rigors of professional use, these bits ensure efficient and accurate fastening, making them a must-have for any toolkit. Torx® fasteners are becoming extremely common in automotive repair and appliance assembly.