General description The Makita HR004GZ01 is a powerful cordless combination hammer designed for heavy-duty applications. It operates on the Makita 40V Max XGT Li-Ion battery packs and features a brushless motor for enhanced efficiency. This tool is engineered for optimal balance, providing excellent handling and control during use. The HR004G is equipped with a Quick Change Chuck for easy bit changes and offers three operating modes: Rotary Only, Rotary Hammer, and Hammer Only. Technical specifications Voltage: 40V XGT Max in Concrete: 28 mm Max in Steel: 13 mm Max in Wood: 32 mm Max in Concrete (TCT Core): 54 mm Max in Concrete (Diamond Core): 65 mm Optimum Drilling Range: 4 - 16 mm Impact Energy: 2.9 J Shank: SDS+ Plus Blows per Minute: 0 - 5,000 bpm No Load Speed: 0 - 980 rpm Net Weight: 4.0 – 4.5 kg Noise Sound Pressure: 93 dB(A) Noise Sound Power: 104 dB(A) Noise K Factor: 3 dB(A) Vibration K Factor: 1.5 m/sec² Vibration: Hammer Drilling: 6.5 m/sec² Vibration: Chiselling: 7.5