The Makita HM1214C SDS Max AVT Demolition Hammer in the 110V Version. Supplied with: 1 x SDS Max Bull Point Chisel. 1 x Tube of Bit Grease. 1 x Side Handle. 1 x Carry Case. The Makita HM1214C AVT Demolition Hammer is a 10kg class demolition hammer adapted for SDS Max bits. Uses AVT (Active dynamic Vibration absorber Technology) for reduced vibration during chipping and suppression of motor speed when no load for reduced vibration when idling. Its in-line tool design is perfect for downward vertical applications. Produces constant speed, even under load and the soft start restricts the initial inrush to provide a controllable ramp-up of speed. Fitted with a one-touch sliding chuck for easy bit installation and removal. There is also an LED lamp indicating when it's time to.