Featuring an Anti-Snap design, MaxFit Ultra Screwdriving Bits are reengineered to deliver up to 800 more screws per bit on select SKUs (Select SKUs vs. standard DewaltPH2 screwdriving bits. Driving screws into MDF material). These improved screwdriving accessories also offer precision fitment for accurate driving. MaxFit Ultra screwdriving accessories are built to last and can handle rigorous applications.