TORXplus® 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: 1/4" Drive Shape: Square Length: 28mm Type: TORXplus®  Bit socket Output Size: 10IPR Tamper Resistant: Yes Product Dimens 1/4 Sq. Dr. Tamper-Resistant TORXplus® 10IPR Bit Socket - Length 28mm