HOUSON Fietskettingbladsleutel, sleufsleutel, crankstelschroef, vaste montage- en demontagegereedschap

Item is unstable. Doesn't work, poor design. Socket does not stay to provide any stability ... kept falling off. Wasted my time making this purchase. (Can't give a zero star, but it isn't worthy of 1 star rating.)

Simply good.

Used to unscrew seezed chainring bolts on my Brompton. Tried the other type of tool which was rubbish. Well made, high quality and highly recommended.

Utilises a standard 5 mm Allen key ( supplied ) to provide leverage against the female part of the chainring bolt. This stops it spinning when trying to remove it, usually to replace a worn chainring. As the barrel is longer than the run of the mill, flat, peg spanner, it does slip/ tip out of the bolt slot easier. On the plus side, the longer Allen key used does provide a bigger surface for a better grip when tightening. Came in a clear plastic bag, no instructions for use included.

Does the job.It won't get much use, but when you need it, you need it.