1/2"sq. LONG T-TYPE torx BIT SOCKET FOR TAMPER FASTENERS Tamper- Design: Features a center hole to engage security Torx fasteners with pin-in-head construction..1/2 Drive Compatibility: Fits standard 1/2 drive ratchets and torque wrenches for high-torque applications..Heat-Treated Steel Construction: Engineered for strength and durability in demanding environments..Corrosion- Finish: Chrome or phosphate coating protects against rust and wear..Clearly Marked Size: Easy-to-read size markings ensure quick identification in toolboxes or on the job. BT4-T50H