The Makita X-LOCK Angle Grinders feature a quick-change system to minimize downtime between accessory changes with no parts to lose. With X-LOCK, changing accessories is tool-less and eliminates the possibility of over- or under-tightening the threaded lock spindles. Users simply pull the lever all the way back to unlock, push wheel to attach (click-mount), and then pull level up to release wheel. Available models include 18V LXT Brushless 4-1/2"/5" Paddle Switch X-LOCK Angle Grinder with AFT, No. XAG26Z; 18V LXT Brushless 4-1/2"/5" X-LOCK Angle Grinder with AFT, No. XAG25Z; and 4-1/2" X-Lock Angle Grinder with AC/DD Switch, No. GA4570.