The Makita ImpactXLine of Bits and Accessories offers a lineup of fastening accessories including insert bits and power bits, magnetic bit holders, magnetic nut drivers and socket adapters. All are impact rated for longer service life and value. ImpactX is built with high quality S2 modified steel that flexes slightly under lead to take pressure off the bit tip, and tips are machined for better fitment. The ImpactX is available in 35-, 40- and 50-pc Driver Bit sets.