40mm SDS MAX Brushless Rotary Hammer Drill

40mm SDS MAX Brushless Rotary Hammer Drill
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Highest Demolition Performance and Fastest Drilling Speed in its class
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  • Industry first AC Brushless Motor
    • Unique Maintenance-free Brushless motor provides significantly longer life
      • No carbon brush replacement required
      • None of the traditional problems from conventional brushed commutator motors​
    • Stable Performance under voltage drop situations
      • Unlike conventional electric Rotary hammers, drilling performance isn't affected as much by voltage drop from long extension leads on site.
        Example: 100mm extension load, 2.0mm² conductor. Performance of conventional models drop by approximately 14%, new Hitachi Brushless models decrease by just 3%.
    • Stable Performance when used with Generators
      • Hitachi’s Brushless design operates consistently and without the traditional problems cause by generator use.
        Requires suitably sized Generator output.
  • Fastest Drill speed in its class - Up to 20% faster*
  • Highest Demolition Performance in its class - Up to 40% high performance*
  • Ultra low vibration due to Hitachi's original, spring-type dynamic vibration absorber & vibration absorbing side-handle - Approx. 15% lower vibration value*
  • Hitachi's original, spring-type dynamic vibration absorber with a weight and two springs moves in the opposite direction to the vibration direction of the main body. This results in reduced vibration and improved operating efficiency. 
  • Aluminium Housing Body (AHB) provides a super strong aluminium die-cast body with internal double-insulation making the housing more rigid, significantly enhancing durability of the motor unit.
  • Improved handling with constant speed control & 4-stage electronic switching to adjust the drilling speed and impact rate
  • One-touch quick change SDS MAX chuck
  • Large change lever & trigger switch - easy to operate wearing gloves
  • 2-mode – Hammer only and Hammer Drilling
  • Variable lock mechanism allows 12 different chisel angles (hammer only)
  • Download brochure here
  • Download Product Specification Card here

AHB-Black(Web)  Brushless icon UVP(Web)

Drilling Capacity Masonry 40mm (drill bit)
105mm (core bit)
Bit Shank   SDS MAX
Power Input   1,150W
No-load Speed (FWD) 250 - 500/min 
Full Load Impact Rate

Impact Energy per Stroke
  1,430 - 2,850/min

11.0 Joules
Vibration Total Values
(triax vector sum)
Hammer drilling into concrete Vibration emission value : ah, HD = 8.0m/s2
Uncertainty K = 1.5 m/s2
(The tri-axial vibration values were measured according to EN60745-2-6) Equivalent chiselling value Vibration emission value : ah, CHeq = 7.3m/s2
Uncertainty K = 1.5m/s2
Overall Length   477mm
Weight   7.5kg
Standard Accessories   Side handle
Depth gauge
Carry case
(Supplied without pictured drill bit)
*A comparison of the model DH40MEY(G1) and the previous model DH40MRY. The results may vary depending on operating conditions.

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