The Bosch COM 509 is a cordless combi drill designed for versatile drilling and screwdriving applications. Below are its key specifications and a summary of customer reviews:

Specifications:

• Power: 18V (Lithium-Ion battery)
• Max Torque: 50 Nm
• No-Load Speed: 0-1,300 RPM (2-speed gearbox)
• Chuck Type: Keyless chuck (10 mm)
• Drilling Capacity:
  • Wood: 30 mm
  • Metal: 10 mm
  • Masonry: 10 mm
• Weight: ~1.3 kg (without battery)
• Features:
  • 20+1 torque settings
  • LED worklight
  • Ergonomic soft-grip handle
  • Battery charge indicator

Summary of Customer Reviews:

• Pros:

  • Lightweight and well-balanced, reducing fatigue during extended use.
  • Powerful for its size, handling most DIY tasks efficiently.
  • Smooth performance in both drilling and screwdriving modes.
  • Battery life is praised for lasting through typical projects.
  • Keyless chuck is convenient and holds bits securely.

• Cons:

  • Not ideal for heavy-duty masonry work; better suited for light to medium tasks.
  • Some users report the torque settings could be more precise for delicate work.
  • Battery and charger sold separately in some regions, increasing overall cost.

Overall, the Bosch COM 509 is highly regarded for home DIY projects and light professional use, offering reliability and ease of use.