A nice set of 7 small adjustable blade reamers ranging from 1/4"-15/32" (6.3-11.90mm). Each reamer has a range of 1/32" (0.79mm). These are used to size a hole exactly to the size you require. Simply adjust slightly each time until the required size is reached. As well as the hole being the correct size it will also be perfectly round, ideal for inserting locating pins etc. The reamers have a square head to enable a hand tap wrench to be used, one ranging from 3.5-10mm will be perfect.
5 October 2017
Not very good.I purchased this set from axminster. On the first use of one of the smaller reamers one of the blades shattered with the lightest turn in the hole. I did return to axminster and they replaced the part with no issues.