PRO GBH 187-LI Cordless rotary hammers | One Chuck – A single chuck that can fit both SDS-plus and cylindrical/hex dill bits for your wide range of applications, Efficiency champion for drilling holes fast with just one battery charge, Better protection by KickBack Control and Vibration Control, Optimized brushless motor and mechanism for faster work, Compatible with dust extractor solution GDE 18V-16, Battery status at a glance on HMI and smart app for customized setting