Ideal for demolition/concrete jobsite, drilling ; crushing ; chipping; digging and squaring . Oil-based motor take long period of time. Specifications: Voltage: 110 V/60 HZ ; Input Power: 1 HP ; No Load Speed: 440 RPM ; Max. Drill Capacity Dia.: 1-1/2”/38MM ; Package Included: 1 x 2-Function Demolition Jack Hammer ; 1 x Side Handle ; 1 x Point Chisel (Hex Shank) ; 1 x Flat Chisel (Hex Shank) ; 1 x Drill ; 1 x Core Drill (Joint Level, Hollow Core Drill & Drill) ; 1 x Oil Feeder ; 1 x Hexagon Bar Wrench ; 1 x L-Hex Key Wrench ; 1 x Pair of Spare Carbon Brushes ; 1 x Heavy Duty Metal Case ; 1 x User’s Manual .