HiKOKI 18V 3000rpm Screwdriver W18DB(G4Z) 1072093_10pk 1 2" Drive 12 Point Standard 20mm Diameter Rotaloc Annular 1 2" Drive 12 Point Standard Metric Socket 19mm Off corner loading design reduces fastener rounding Chamfered opening to guide fastener into Socket Large hard stamped size identification with UKAS certification of both measuring head and setting ring as standard Brushless motor delivers 3 000RPMAutostart Technology for automatic start of tool when pressed against a surfaceSelectable "Impulse" mode for precise driving in of protruding screwsAdjustable nose piece deliver consistent screw depthIntegrated LED lights to illuminate the contact area