The Milwaukee 17oz Hammer Is Designed For The Best Driving Performance, It's Lightweight And Precision Balanced Design Removes Weight From The Tool Belt, While The Extended I-beam Handle Provides The Added Power Needed To Drive Nails Efficiently, The Shockshield™ Grip, Reduces Vibration Up To 10X More That The Competition And Is The Most Durable Grip In The Industry, An Integrated Magnetic Nail Set Is Designed To Allow Users To Set Nails One Handed And The Asymmetrical Anti-Ring Claw Minimizes Ringing When Striking Hard Objects.