Makita HR4002 Rotary Hammer

• Increased Drilling Efficiency: Enhanced by a redesigned hammering mechanism.
• Anti-Vibration Technology (AVT):
  • Equipped with two counterweights.
  • Anti-vibration rear handle with cushion rings for increased vibration absorption.
  • Anti-vibration side grip absorbs excess vibrations beyond the counterweights' capacity.
• Bit Stability: The bit guide is 8 mm longer compared to previous models (HR2811F series), resulting in less bit wobbling.
• Powerful Motor:
  • Power: 1,050 W.
  • Impact Energy: 3.9 J (EPTA-Procedure 05/2009); 4.5 J under experimental conditions.
• LED Light: Illuminates the drilling surface for improved productivity in low-light conditions.
• 3-Mode Operation:
  • Rotation Only.
  • Hammering with Rotation.
  • Hammering Only.
• Tool Life Enhancement: “No hammering when idling” function.
• Safety Features:
  • Torque limiting clutch to prevent gear damage by disengaging gears if the bit binds.
• Ergonomics:
  • Handle: D-shaped with rubberized soft grip.
  • Variable Speed Control Dial: Adjusts speed according to materials or application.
  • Constant Speed Control: Automatically maintains speed under load.
  • Recessed Lock-on Button: For continuous operation.
• Durability: Double insulated.

Specifications:

• Continuous Rating Input: 1,050W
• Impact Energy:
  • EPTA-Procedure 05/2009: 3.9 J
  • Experimental Conditions: 4.5 J
• Capacity:
  • Concrete (with TCT Bit): 30 mm (1-3/16″)
  • Concrete (with Core Bit): 80 mm (3-1/8″)
  • Concrete (with Diamond Core Bit): 80 mm (3-1/8″)
  • Steel: 13 mm (1/2″)
  • Wood: 32 mm (1-1/4″)
• Blows Per Minute (BPM): 0 – 4,500
• No Load Speed (RPM): 0 – 840
• Sound Pressure Level: 94 dB(A)
• Sound Power Level: 105 dB(A)
• Noise K Factor: 3 dB(A)
• Vibration Levels:
  • Chiselling Function with Side Grip: 6.0 m/s²
  • Hammer Drilling into Concrete: 9.5 m/s²
  • Drilling into Metal: 5.5 m/s²
• Vibration K Factor: 1.5 m/s²
• Dimensions: 369 x 98 x 242 mm (14-1/2 x 3-7/8 x 9-1/2″)
• Net Weight: 4.4 – 4.8 kg (9.7 – 10.6 lbs.)
• Power Supply Cord: 4.0 m (13.1 ft)

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