550 HMSL

Pneumatic Hammer Drill 550 HMSL

  • MAXX-Power 550 Watt motor, fully ball-beared which grants a high load

  • Low weight enables a fatigue-free working, specially at overhead works

  • Magnesium-metall gear casing ensures an optimal impact performance and long lifetime

Order number: 04284401
Base price 180,50 €
Sales price 218,41 €
Tax amount 37,91 €

Technical Data

Nominal rated input   550 Watt  
Max. impact energy – EPTA-Procedure 05/2009   1,8 Joule 
No-load speed   0 – 1.450 1/min. 
No-load rate of percussion   5.790 1/min. 
Max. bore diameter for hammer drilling in concrete   18 mm 
Max. bore diameter in steel   13 mm 
Max. bore diameter in wood   25 mm 
Clamping collar Ø   43 mm
Tool weight   1,7 kg


Worldwide best-possible performance/weight ratio

Combination of highest impact energy and torque at a very low weight


Product features 

  • Thermal touch protection at continuous operation
  • Optimized speed ensures a low drill wear
  • Single-knob switch-over from drilling to hammer drilling
  • Hammer action stop for normal drilling
  • Brush change switch ensures maximum torque both in right-handed and left-handed rotation
  • Control electronics for soft start-up
  • Safety friction clutch protects the user
  • SDS-Plus tool holder with automatic locking
  • Soft hand grip and rubberized trigger switch for fatigue-free work
  • 4 m rubber power cable with patented quick-action lock. Available as an accessory in 4 m and 6 m lengths.


Scope of delivery

2-component soft hand grip with drilling depth gauge, professional carrying case

Noise/Vibration Information 

vibration emission level ah / hammer drill   17.5 m/s2
uncertainty velue K   1.5 m/s2
sound pressure level LpA   88 dB(A)
uncertainty velue K   3.0 dB(A)
noise power level LwA   99 dB(A)
uncertainty velue K   3.0 dB(A)


LpA = A-rated sound pressure level, LwA = A-rated sound power level

K = Measurement uncertainty value, ah = Triaxial vibration emission level

Measurement values determined according to EN 60745.

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