Powerful 10.5A motor delivers 0 to 4500 RPM and 0 to 3000 BMP. Powerful hammer mechanism delivers 5.5 ft/lb of impact energy for drilling in hard aggregate. Constant Power Technology delivers consistent performance in tough applications. Rotary hammer offers 2-mode operation - rotary hammer and rotation only for maximum versatility. Mechanical clutch protects tool when bit binds up. 12-position chipping adjustment allows the user to maintain the desired hammer position while chipping in any orientation. 13', 3-wire cord. Includes side handle and carrying case. No. 5317-21: Chuck Size: 1-9/16 In., Chuck Type: SDS-Max, Amperage: 10.5A, No Load Speed: 0-450 rpm, Impacts per Minute: 0-3000 IPM, Case Included: Yes, Weight: 15 Lb., Dimensions: 17-3/8 In. L, Cord Length: 13 Ft., Warranty: 5 Year, Pkg Qty: 1, Package Type: Box