Features: • Dual Elastomer Cushions Absorb Shock and Vibration to Reduce User Fatigue • Direct Multiport Front Exhaust Keeps Air and Residue Out of User • High Quality Steel Barrel Provides More Strength • Hardened Steel Piston Delivers Harder Impacts for Maximum Impact Vibro Impact Air Hammer Kit: - Shaft Spacing: 10.2 mm - Round Shaft Kit Contents: 1 pcs SM-108 Vibro Impact Air Hammer 4 Special Vibro Chisels 1pc Quick-Change Holder 1pc Impact Box