The Makita HM1213C SDS Max Demolition Hammer offers high durability and excellent demolition performance. Anti-vibration technology ensures extra-low vibration performance. Suppression of motor speed during no-load reduces vibration of the tool body. The bit can be set at 12 positions for convenience. The one-touch sliding chuck makes it easy to install and remove bits. The LED lamp indicates when to replace the carbon brush. Other features include variable speed, constant speed under load and soft start. Specification Input Power 1,500W Impact Rate 950-1,900/bpm Impact Energy 18.6 joules Weight 10.8kg Vibration Chiselling 7 m/sec Vibration K Factor 1.5 m/sec Noise Sound Power 95 dBA Noise Sound Pressure 75 dBA Noise K factor 2.53 dBA