General description Makita DLX2131JX1 18V LXT 2 Piece Combo Kit includes a lightweight and shock-absorbing design, featuring advanced Li-ion battery technology that offers 430% more working capacity over its lifetime compared to Ni-Cad batteries and is 40% lighter than Ni-MH batteries. The Li-ion batteries experience minimal power depletion during use or storage, ensuring reliable performance. Technical specifications Voltage: 18 V Net weight: 1.8 kg DHP482Z Combi Hammer Drill: Capacity in Steel: 13 mm Capacity in Wood: 38 mm Capacity in Masonry: 13 mm Chuck Capacity: 1.5 - 13 mm No Load Speed (Hi): 0 - 1,900 rpm No Load Speed (Lo): 0 - 600 rpm Blows per Minute (Hi): 0 - 28,500 ipm Blows per Minute (Lo): 0 - 9,000 ipm Fastening Torque (Soft Joint): 36 Nm Fastening Torque (Hard Joint): 62 Nm Noise sound pressure: 82 dB(A) Noise sound power: 93 dB(A) Vibration K factor: 1.5 m/sec² Vibration: Impact drilling into concrete: 6.0 m/sec² Vibration: Drilling into metal: 2.5 m/sec²