The Makita HM1101C SDS Max AVT Demolition Hammer is fitted with a one-touch sliding chuck for easy bit changes. The soft start feature ensures a smooth start every time and it has constant speed under load. The tool has double insulation to increase user safety. It is perfect for chiselling work in concrete, brick, stone and asphalt as well as for driving and compacting with appropriate accessories. It is supplied with a bull point, bit grease, side handle and a carry case. Specification Input Power: 1,300W Impact Rate: 1,100-2,660/bpm Impact Energy: 11.2 joules Bit Angle Setting: 12 Stage Weight: 7.0kg All vibration figures quoted are Tri-axial to EN60745 2006. Vibration chiselling : 13.4 m/sec².