9-piece long torx star hex key set with hole, model 16753-29TH, sizes from TH10 to TH50, designed for use with tamper-proof Torx (star) screws. It features a long design for easy access to tight and deep spaces, with high precision and stability during use. Made from strong, high-quality materials that withstand heavy use, making it suitable for workshops and professional maintenance work, and providing great flexibility in handling various sizes.