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Makita 18V 17mm Cordless Rotary Hammer, DHR171RTJ

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Technical Details

Brand MAKITA
Type of Product
 Combination Hammer
Model No  DHR171RTJ
Continuous rating input 
 800W
Impact Energy
 EPTA-Procedure 05/2009: 1.2 J
Our experimental conditions: 1.1 J
Capacities Concrete: 17 mm (11/16″)
Steel: 10 mm (3/8″)
Wood: 13 mm (1/2″)
Blows Per Minute (BPM)  
 		0 – 4,300
No Load Speed (RPM) 
 0 – 680
Sound Pressure Level  
 86 dB(A)
Sound Power Level 
 97 dB(A)
Noise K Factor
 3 dB(A)
Vibration Level 
 Chiselling: 15.5 m/s²
Vibration K Factor 
 Chiselling: 1.5 m/s²
Vibration Level 
 Hammer Drilling into Concrete: 9.0 m/s²
Vibration K Factor 
 Hammer Drilling into Concrete: 1.5 m/s²
Vibration Level  
 Drilling into Metal: 2.5 m/s² or less
Vibration K Factor  
 Drilling into Metal: 1.5 m/s²
Dimensions 
 w/ BL1815N / BL1820B: 273x86x194 mm (10-3/4″x3-3/8″x7-5/8″)
w/ BL1830B / BL1840B / BL1850B / BL1860B: 273x86x211 mm (10-3/4″x3-3/8″x8-5/16″)
Net weight 
 2.1 – 2.8 kg (4.6 – 6.2 lbs.)
Package Contains  1 Battery and Charger

 

Product Description

18V LXT BL Brushless Cordless 17 mm (11/16″) Rotary Hammer, SDS-PLUS Bits

  • BL Motor Delivers 0-680 RPM, 0-4,800 BPM and 1.2 Joules of Impact Energy for Faster Drilling
  • Compact and lightweight for reduced operator fatigue
  • Vibration absorbing housing and ergonomic soft rubber grip design for vibration absorption and comfortable operation
  • BL motor with high power to weight and size ratio
  • BL motor generates less heat buildup and is ideal for prolonged use in high production applications
  • BL motor is electronically controlled to optimize battery energy use for up to 50% longer run time per charge
  • BL motor eliminates carbon brushes, enabling the BL motor to run cooler and more efficiently for longer life
  • BL motor efficiently uses energy to match torque and RPM to the changing demands of the application
  • Dust cup connectable to Makita vacuum cleaner (country-specific): Suitable for upward operation: For cleaner work environment
  • Built-in LED light with afterglow function illuminates the work area
  • 2-Mode operation for “Rotation Only” or “Hammering with Rotation” for multiple applications
  • Side grip with elastomer soft grip
  • One touch sliding chuck enables quick and easy bit changes
  • Variable speed trigger allows operator to adjust speed based on materials or application
  • Constant speed control automatically applies additional power to the motor to maintain speed under load
  • Depth gauge for increased drilling consistency
  • Conveniently located push button for rotation reverse
  • Electric brake for maximum productivity and increased operator safety
  • Battery protection circuit protects against overloading, over-discharging and over-heating. Optional hook is convenient for temporarily hanging the tool