TORX®  is recognized as one of the three most efficient fastening systems because of their ability to transfer greater torque, reduce load and virtually eliminate tool slippage. Input Drive Size: 3/8" Drive Shape: Square Length: 50mm Type: TORX® Bit Socket - Tamper Resistant Output Size: T20H Product Dimension (Refer L 3/8 Sq. Dr. Tamper-Resistant TORX® T20H Bit Socket - Length 50mm