The HM1812 is a 30kg class electric breaker that features best-in-class power. These robust machines are the first electric breakers from Makita to be equipped with vibration absorbing housing, providing a practical combination of high power and low vibration.Features & BenefitsVibration absorbing housing.Counterweight mechanism reduces vibration when chipping."Soft no load" function automatically reduces the motor speed during idling to suppress the vibration of the machine body.Soft start.LEDs indicate when to replace carbon brush.Ergonomic soft grip.Highly durable switch.High power.Name plate and serial label positioned where it will be free from scratches and damage.Compatible with Hammer Trolley.Connectable to dust extractor.Specifications:Impact energy 72.8 JBlows per minute 870 bpmDrive shank Hex 1 1/4"Vibration: Chiselling 6.5 m/sec²Vibration K factor 1.5 m/sec²Noise sound pressure 96 dB(A)Noise sound power 107 dB(A)Noise K factor 3 dB(