Bosch GWS 7-115 4½” Professional Angle Grinder Review

August 21, 2013 at 7:53 pm
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Bosch GWS 7-115 4½" Professional Angle Grinder

The Bosch Professional (blue) series of tools are designed for the trade which are expected to be a bit more robust, and in general a bit more powerful than their standard green counterparts; simply taking the already very good German build quality and improving upon it to make tools that trade users would take seriously.


This grinder is intended for use in small spaces and one-hand operation, delivering high power where a 9 inch grinder would simply be too cumbersome, or too powerful.


  • Adjustable blade guard
  • Aluminium gearbox housing
  • Champion motor for higher efficiency
  • Side handle
  • Spindle lock
  • Lock-on switch
  • Lightweight


This is a tough little tool. Ours is currently in its 4th year of frequent (and reasonably hard) use, grinding a variety of metals and lots of other things which probably shouldn’t have been… In that time we’ve only had to replace the flex, largely as a result of the metal retainer that grips the flex internally slowly cutting through it. This could clearly be improved!

The adjustable blade guard was not one of the reasons behind purchasing this grinder, in fact we thought it was a bit of a gimmick initially. However, it comes in surprisingly handy, as often working in tight spaces the ability to move the blade guard round to get a different angle of attack than a machine with a fixed guard can really help.

The tool itself is lightweight and the lock-on switch is invaluable for one-handed operation. It may not be strictly advisable to use the grinder with one hand, but it is inevitable on occasion. Again, working in tight spaces, it can sometimes be the only way to use it so these features are truly helpful.


We’ve genuinely struggled to think of it a con for this tool – it does very much what it says on the tin, and does it very well and very efficiently. It does suffer from chewing through its own flex, which is obviously a problem, but would we replace it if it were stolen? Yes, in a heartbeat.


This Bosch Grinder is tough, good value and, so far, hasn’t let us down in any situation. Its one weak spot is a bit of poor design which leads to the cable degrading over time, but overall the grinder’s good points outweigh the bad. Being lightweight and with a switch to lock the motor on, it’s easy to use one-handed if necessary, or two-handed with precision thanks to the side grip attachment. It’ll get into awkward corners too with the blade guard adjusted appropriately. Thoroughly recommended.