Hitachi W6V4SD2 SuperDrive Collated Drywall Screw Gun Tool free depth adjustment: no need to reach in the tool box to change screw depth Wide fastener range: the W6V4SD2 SUPERDRIVE system if ready for work given it fastens screws from 3/4" to 2-3/16" and screw diameters from #6-#12 24.6 foot cord: this allows you to move around the jobsite without having to stop every few feet to unplug and re-plug from a power outlet Superdrive collated drywall screw gun (certified refurbished)