This Torx Socket Bit features a 1/2" (12.7 mm) connection size and a 25 mm diameter, optimized for fastening recessed Torx screws, size T45. Its 55 mm total length and 4.3 mm blade length ensure precise engagement and efficient torque transfer in industrial and mechanical settings. Key features: - Connection size: 12.7 mm (1/2 inch) - Diameter: 25 mm for secure grip - Size: Torx T45 with hole for recessed screws - Total length: 55 mm; blade length: 4.3 mm - Compatible with standard socket wrenches for versatile use