Made by Simpson Strong-Tie, these replacement drive bits (Item #BIT3SU-RC3) are designed for Quik Drive screws and the auto-feed screwdriving systems. They are compatible with some of the CB3BLGfiber cementand CB3BLGHL cement board screws. They are compatible with most screws that feature a #3 recessed square drive and exterior-grade finish. The BIT3SU screwdriver bits are sold 3 per pack.
WARNING: California residents, this item qualifies for Proposition 65 legislation.