CStanford":1na7tt23 said:
I had one. Beautifully made but I could barely hone it. Natural oilstones wouldn't do a thing and even on silicon carbide sandpaper it was more effort than I was willing to put in.
As an aside, why in the world would these be made in England but initially only available in North America?
The Chris Schwarz link posted above by Peter Sefton makes reference to the difficulty of sharpening D2 steel. Even his diamond stones baulked at it. His Norton waterstones did the best job.
Ray also offers some replacement plane blades in D2 steel. I suspect they hold an edge very well indeed - once you can produce it!
As to why Ray came to be making OBM chisels at all is explained in the first link Peter posted, so I won't repeat. I will specualate as to why vintage OBM chisels seem relatively scarce in North America, though. I suspect that America, for various reasons, was much quicker to adopt machine methods and mass production than the UK, and the very traditional nature of apprenticeships in the UK meant that youngsters were expected to do things by hand before being allowed to use machines until comparatively recently. Things may have been a bit more modern in towns, but even up until World War 2 it was quite common for country joiners to make all the fixtures and fittings of buildings from scratch, and the cost of machinery then relative to now meant that many smaller provincial workshops couldn't afford much machinery. I also suspect that standardised machine-made items were much more the norm in America from much earlier, a development that only really became universal in the UK after WW2. Nowadays, it's unusual for a door to be custom made, though given the variety of sizes, windows are a bit different.
So - the American craftsman had machines available earlier than his British counterpart, had access to standardised factory-made products earlier, and thus had no need of specialist OBM chisels from perhaps the early 20th century.
Quite a few of the vintage OBM chisels that come up in the UK are stamped with the War Department broad arrow and date; one of mine is WD 1944, for example, showing that even this late, services craftsmen were issued with 'traditional' hand tools. I gather that OBM chisels were still being manufactured into the 1960s in Sheffield (and manufacture of the lighter sash mortice chisels never ceased - several makers offer them today).