Originally Posted by
Charlie Stanford
I demo'd a PMVII chisel. You aren't missing much. Yes, the edge holds up a little longer when used at the factory grinding angle but it gets no sharper than any other chisel I've ever owned. If honing and quick touchups don't scare you then, again, you aren't missing much.
Ground and honed at 20* (might have been a little lower) the edge lasted no longer than the same size/same grind Marples Blue Chip in paring and very light chopping - just taps, really. To me, paring and 30* chisels are not congruent. 5* makes a difference. 10* makes a big difference. PMVII is not a breakthrough steel. It's just not. All of the usual trade-offs are still very much in play. Metallurgical physics has not been turned on its head. It doesn't tolerate low grinding angles any better than other steels, and possibly less so. Practically everything holds up at 30* and higher, at least for a reasonable amount of time. If you have more honing gear than God and perceive the need to tend two grinders, a half-dozen stones, water baths, spray bottles, diamond flattening plates, honing jigs, nagura slurries, and assorted grits, bits and bobs just to knock a bit of a rolled edge off then maybe these will work for you. It is only in this hyper-equipped environment that these chisels, somewhat conversely, would seem to make sense.
It's unclear to me why somebody would spend $70 per for a chisel that appears to require a minimum 30* grind to perform its magic and becomes practically indistinguishable, other than for its looks, at lower angles. If the fine folks at Lee Valley come up with something that kicks ass at 15* I'll buy two lifetime's worth. This would be a breakthrough worthy of all the internet teasers, 'leaked' release dates, and hype. Give me something I can chop a mortise with one minute and pare tissue the next, and not at some silly relatively obtuse angle, with no work at the stones in between. THAT would be a breakthrough and I'll be more than happy to claim it as such when/if it comes around.
They are beautiful chisels, the fit and finish is fantastic. No doubt about it. I'm sure the guys who have sunk a bit of coin into them want to believe they're the cat's pajamas, but if you aren't susceptible to that sort of consumer psychology then use what you already have in your shop and spend the saved money on wood.