MAX Comfort: Anti-vibration feature reduces tool vibration by over 30% when compared to standard air hammers in its class, MAX Power: 15% increase in impact force over standard air hammer product offering, MAX Productivity: Quick-change retainer allows for faster chisel changeovers, so you can get the job done, Includes: Air hammer Quick change retainer 5 piece chisel set Carrying case, SKU: EGLE13421