Bosch GWS 22-230H 9″ Professional Angle Grinder Review

August 21, 2013 at 8:30 pm
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Bosch GWS 22-230H 9" Professional Angle Grinder

The Bosch GWS 22-230H 9″ Professional Angle Grinder is an easy to handle, lightweight, professional style grinder. It’s part of the Bosch ‘blue’ range, which are Bosch tools targeted at trade users. The tools tend to be a bit more robust and often more powerful than the green versions, which are aimed at the serious DIY market.


This grinder is designed to be rugged and powerful, with a 2100W Champion motor, but without being heavy and cumbersome as a result of all that power and resilience.


  • Low cost, at £133.99 this is a lot of grinder for the price
  • Adjustable and removable blade guard
  • Champion motor for higher efficiency
  • Replaceable brushes
  • Aluminium Gearbox Housing
  • Sealed Bearings
  • Lock-on switch
  • Side Handle
  • 5.2kg


The little brother of this grinder is powerful and lightweight, so it’s reasonable to expect that this grinder might be too. Fortunately it doesn’t disappoint. At 5.2kg, it sounds like a heavy piece of kit, but compared to a lot of 9 inch grinders it’s actually pretty lightweight and is consequently nice and easy to handle. The side handle helps you be more precise and does soak up a lot of vibration, but virtually all grinders of this size would have a side handle.

At 2100W it is powerful on paper, but it genuinely is a powerful grinder in operation too and is virtually impossible to stall (in our experience anyway). Despite the fact that it’s lightweight, that doesn’t mean that Bosch have compromised on the toughness of this tool – we’ve had this one for over 2 years now, dragging it through concrete dust (sealed bearings help here), slurry, rust dust and much more, but it beats on without so much as flinching. Ours is primarily used for cutting slabs and brickwork.

The blade guard is removable so that you can fit other accessories such as polishing sponges and bonnets, or more commonly for our grinder, a wire brush cup, which is absolutely brutal for cleaning up steel. The ‘click-forward’ trigger is also nice and easy to use.


We really like the adjustable and removable blade guard, but in comparison to its little brother, it’s a bit fiddly. Not irritatingly so at all, but it requires a tool, whereas the nice thing about the 4 1/2″ grinder is that you can simply press a button to move the blade guard.

It is loud! But then it is a big grinder, so perhaps to be expected. If you’re wearing the correct PPE (ear defenders) though you won’t really notice it.


Tough, lightweight and uncompromisingly powerful sum up this grinder quite succinctly. If the point of Bosch’s blue range was to make trade users take the Bosch brand seriously, they’ve certainly succeeded with this grinder. Its relatively light weight is the key to its versatility, which is what makes it suitable for a wide range of jobs, from precision work such as decorative brickwork, through to jobs which require sheer power, such as cleaning up agricultural iron and steelwork. This is definitely a tool that we’d miss if it were lost or stolen!