The GBH 18V-45 C Professional SDS-Max Hammer Drill with a high performance brushless motor and powerful ProCORE 18V 12.0Ah Battery offer cordless freedom with cordless performance thanks to Biturbo brushless technology Features and Benefits: Lighter than a comparable corded tool even with ProCORE18V 12.0Ah Less weight thanks to a highly optimized drive train Lock-on button for continuous operation in chisel mode Working mode choice - Powerful, sustained or precise work results selectable via HMI Mobile device pairing via Bluetooth connectivity module Kickback Control reduces the hazard of sudden tool reactions in binding conditions thanks to automatic shut-down of the tool Improved starting precision due to Speed Adaptive Control (ASC) Signal switch for variable speed control Improved viability with focused working light with afterglow