i've owned a couple of these ,didn't quite get on with them ,better than most but my abu's are eaasier to use and very hard to beat ,i seem to recall they have a nylon gear which can strip .Milo does a modern version of these called the tact 5403 .which comes in a fetching red shade or for the traditionalist a (faux) teak effect
red one
(faux) teak one
trouble is finding a milo dealer to order one
I try to be funny... but sometimes I merely look it! Steve