Simpson Strong-Tie® driver bits are now color-coded to make size and type selection easier. Available in 6-lobe, square and hex drive, these driver bits have color bands that make choosing the correct size for your fasteners a breeze. Our industrial-grade driver bits are specially designed for a secure fit with Simpson Strong-Tie fasteners and will outperform sub-standard bits commonly prone to cam-out and stripping. 1/2-in. Hex-Drive 1-3/4 in. Power Bit (Pack of 5).