Best in class impact energy - 2.4 ft lbs - Provides increased drilling capacity (from 1 to 1-1/8 inches) and up to 40 percent faster drilling speeds vs the competition. Best in class anti-vibration system - Counter-balance vibration control for improved comfort for all day drilling/chiseling applications. 2.4 ft ls impact energy - All new Bulldog extrreme max has an increased drilling capacity up to 1-1/8in for the fastest drilling hardest hitting hammer in its class. Counter-balance vibration control - Vibration reduction in the hammer michanism reduces vibration up to 30 percent vs competitors providing uncompromising user comfrot in all day applications. Metal gear cover - Rugged diesign for maximum jobste durability. HammerHook - Allows quick tool storage during the job. Multi-function Selector . 3 modes of operation, rotation only, rotary hammer and hammer-only mode. Vario-lock - Rotates and locks chisel into 40 different positions to optimize working angle. Integral clutch - Helps minimize torque reaction. Patented Cord Turret . 35 degree pivot for added flexibility and longer cord life. SDS-plus Bit System - Tool-free bit changes with automatic bit locking, dust protectin and maximum impact energy transfer rate. D-Handle Design - Ideal for overhead and downward drilling applications.