This 3/8" Torx-E-Stecknuss with isolation is a handy tool for anyone who needs to drive Torx screws efficiently. The isolation meets international safety standards, providing protection from electrical shock. With its ergonomic design and four-sided shaft, it's easy to use with a ratchet handle. Made from high-quality chrome vanadium steel, it's strong and durable. The E20 Torx key is a common size used in many applications, making it a versatile tool for various tasks.