English 
- Brand: Makita
- Model: HR4501C
- Maximum output power: 1350 wattage
- No load speed: 130 - 280 min⁻¹
- Idle frequency: 1250 - 2750 min⁻¹
- Maximum drilling diameter in concrete: 45 mm
- Optimum drilling diameter in concrete: 20 - 35 mm
- Impact energy: 10.1 J
- Drilling diameter with carbide bit: 125 mm
- Power cord: 5.0 m
- Protective case: Yes
- Side handle: Yes
- Depth gauge (2): Yes
- Weight without cable (EPTA 01/2003): 8.2 - 8.4 kg
- Tool dimensions (L x W x H): 458 x 121 x 288 mm
- Sound power level (L WA ): 105 dB (A)
- Sound pressure level (L pA ): 94 dB (A)
- Noise level (K-factor): 3 dB (A)
- Vibration level (3 axes) hammer drilling: 16,0 m / sec²
- Vibration: Chiseling: 12.5 m / sec²
- Vibration level (3 axes) chiseling with D-type side handle: 12.5 m / sec²
- Vibration Uncertainty (K-factor): 1,5 m / sec²