Selected Rotary Hammers

Bosch GBH 8-45 D

Bosch Logo
Bosch GBH 8-45 D
The Bosch GBH 8-45 D is a powerful SDS-max rotary hammer with high impact energy, perfect for drilling into concrete, stone, and tough materials. Its durable build makes it ideal for demanding construction work.

9.0

Quality
10/10
Ease of use
9/10
Performance
10/10
Value for money
7/10
Total rating: 9.0/10
ProductRotary Hammer
BrandBosch
Product titleGBH 8-45 D
Power SourceElectricity
Power1,500 W
Impact Energy12.5 J
Drill Ø (Concrete)45 mm
Idle Speed165–300 rpm
Impact Frequency1,475–2,700 impacts/min
Weight8.2 kg
Noise Level105 dB(A)
Product pageLink
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Functions

  • SDS-max tool holder for quick bit and chisel changes
  • Robust construction with metal components for long service life
  • Powerful motor with high impact energy for fast drilling and high material removal rates

Disadvantages

  • Relatively heavy, but provides stability for heavy-duty tasks

Benefits

  • Perfect balance between power and weight for various SDS-max tasks
  • Long durability due to robust metal components
  • Efficient drilling even in tough materials
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FAQ

Look at impact energy (J), speed (rpm), chuck type (SDS-plus or SDS-max), power (W), and features like rotation stop or chiseling mode. Also consider if you'll be drilling into concrete, brick, or stone.
A rotary hammer is far more effective in hard materials like concrete and masonry. It uses a pneumatic hammering mechanism that delivers higher impact energy with less effort from the user.
For light-duty work, 2–3 J is sufficient. For heavier drilling, look for 4 J or more. Power between 700–1,100 W is typical. SDS-max is used for the most demanding jobs.
Keep the chuck and ventilation areas clean, lubricate the SDS chuck if needed, inspect the power cord, and replace worn carbon brushes in brushed models. Store it dust-free and dry.
Yes, for heavier work where you need consistent, maximum power over time. Cordless offers mobility, but electric models are ideal when you have steady access to power.