Simpson Strong-Tie BIT3SU-RC3 Drive Bit, No 3 Drive, Square Drive

It is necessary to use the right driver bit to ensure optimum results with a quick drive system. The bits included in each box of quick drive screws should be sufficient to drive the entire box, however variations in materials and driving techniques can shorten driver-bit life. Replacement bits are available in bit packs, reference the label on the bit included in the box or the box label to ensure correct driver-bit selection.