This brushless body only drill is compact, overall length is only 176mm. The DTD155 features assist Mode which helps to eliminate "screw cam-out" and "cross threading by driving at low speed until the start of tightening. Includes a 1/2" impact socket set with sockets 8, 10, 12, 13, 14, 15, 17 and 18 mm along with a 1/4" Hex to 1/2" Square converter - ideal for use with Impact Drivers as well as Impact Wrenches. DTD155 18v LXT Brushless Impact Driver Features Brushless Motor Electric Brake Variable Speed Trigger Forward/Reverse Rotation LED job Light 2-Speed Impact Power Selection Ergonomic Soft Grip Assist Mode: helps to eliminate "screw cam-out" and "cross threading by driving at low speed until the start of tightening Bare Tool - No Battery or Charger Supplied