Teng Tools TX Key Set T Handle 7 PiecesT Handle TX TPX Key Set TT1 7 Pieces. Professional T handle set with ergonomic TPR grips, featuring straight TX heads for high torque applications and TPX heads for tamper proof fasteners. Organised in a TT1 tool tray module for convenient storage. Key Features: 7 piece T handle TX TPX key set Ergonomic thermoplastic rubber (TPR) anti slip grips Straight TX head on short arm for higher torque TPX head on long arm for tamper proof fasteners Removable