The DeWalt D25951K SDS MAX Demolition Hammer boasts a hard-hitting German-engineered mechanism. It delivers constant speed so it maintains impacts under load, even in the hardest concrete. Plus, with the SHOCKS Active Vibration Control® technology, it reduces vibrations the user feels for longer work intervals with less fatigue.This tool comes Tag Ready(TM), so users and companies can attach the DEWALT Tag(TM) and track its location virtually anywhere via the DEWALT Tool Connect(TM) app.