Makita XRF02Z 18V LXT Lithium-Ion Cordless Autofeed Screwdriver Kit Makita-built 4-pole motor delivers superior fastening speed with 4,000 RPM High collated screw capacity range: 1" to 2-1/8" Screw guide prevents screw strip tangling and can fold against the auto feed housing for easy storing Rugged aluminum dust-proof auto feed housing provides smooth sliding action Compact and ergonomic design at only 16-3/4" long