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. 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 Includes LXT Brushless Carry Case