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1-9/16" Rotary Hammer
Owners Manual Parts Breakdown Print

Carrying Case

Tool only. Battery and Charger sold Separately
Model No: HR4003C

Variable Speed, Constant Speed Control, Soft Start


Hammer & Rotation / Hammer Only

  • Incorporates both trigger and locking switches for ease of operation in intermittent drilling and prolonged demolition applications
  • Constant speed control maintains constant speed under heavy load
  • Torque limiter stops bit rotation if bit jams for increased operator safety and tool protection
  • Soft start feature gradually increases speed to eliminate start up shock
  • Variable speed dial allows operator to adjust speed based on materials or application
  • Auto-shut off carbon brushes shut off motor when carbon brushes require replacement
  • 24 angle bit positions enable chisels to be positioned at optimum angle of operation
  • One-touch SDS-MAX sliding chuck for easy bit installation and removal
  • LED service light indicates appropriate time to change carbon brushes
  • LED power light indicates active power supply
  • Ergonomic soft rubber grip design for vibration absorption and comfortable operation
  • Includes straight (drilling) and D-style (demolition) handles


INCLUDES: Straight Side Handle (123138-5), D-Style Side Handle (196792-8), Cleaning Cloth (443122-7), Depth Gauge (331955-1), Bit Grease (194683-7), Plastic Carrying Case (141976-3) 


Bit Type


Maximum Capacities:

Concrete (TCT)

1-9/16" (40 mm)

Concrete (Core Bit)

4-1/8" (105 mm)

No Load Speed

250 - 500 RPM

Blows Per Minute

1,450 - 2,900 BPM

Impact Energy

11.4 J (8.4 ft. lbs)

Vibration Level

10.0 m/s2

Noise Level

92 dB(A)

AMPS (120V)

11.0 A

Overall Length

18-11/16" (479 mm)

Net Weight

13.8 lbs (6.2 kg)

LED Pen Light

LED Pen Light

Note: Makita Canada reserves the right to change specification of products without notice. The contents of the parts breakdown and Instruction manuals may be different from current products.


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