Hiltex 10504 1" Electric Rotary Hammer Drill, 4.7 Amp | Includes 2 Chisels, 3 Drill Bits | 900 RPM, 3150 BPM 3 tools in 1: has hammer and drill stop switches for three operating modes to break masonry (hammer/drill), chisel (hammer) and penetrate (drill) Capable of penetrating 1-inch (26 MM) of concrete and drilling through steel and included depth stop prevents over penetration and damage to tool Electric rotary hammer comes with fully rotatable auxiliary handle can be secured at any angle for a better grip and increased precision Electric roto-drill has spring-loaded quick swap chuck that locks instantly using SDS Plus shanks with cross-section shape for security Six feet cord plugs into domestic outlets for more consistent power output than cordless power tools without being limited by battery life