Oldtuleguy
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- Nov 4, 2017
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Go to an eBay auction for Indian Motorcycle special tools catalog...there's a pic of a cylinder head wrench like yours with the same #. I have a few of these but none marked BluePoint.
All the early metric SO and BP tools have the model number with the M at the end, I think it changed sometimes in the late 60s or early 70sInteresting the part # has M as a suffix, don’t nowadays M preceed the size numbers?
I'm just guessing:Interesting the part # has M as a suffix, don’t nowadays M preceed the size numbers?
The 9/32 dr metric sockets are like: M10MI'm just guessing:
An 'M' prefix was used on the Midget 9/32" drive tools so maybe whilst those were still made it had to be a suffix for metric?
It would need a bit of work checking dates and catalogues to see if the theory is right.
Possible little variation in this one. Same as Second front bottom in your pic but only has one arrow Possibly just a factory defectThe main types of Tappets.
Top: name and model on head. no T in the model number. cats. 25-26
Second: name and model on head has T in model number 25-26
Third: name on body stamped. model number on head 27-29
Fourth: name raised, has inset. model number on head 30-31
fifth: name raised, changed to Blue Point. has arrows. model number on head. 31-33
sixth: name raised no arrows model number on head. no made in USA. 34-36
Sometimes you will see variations in types.. like name on head and body.
But these are the main types of tappets. The cat dates are about right, but could be wrong. I did this by looking at the different model numbers in each cat. they do change, then comparing the odd models that were only made for a year or so.

Additionally your Blue Point T-101472 appears to be the same wrench as the oft brought up Snap-On N-630 QMC . As well as the 41-W-872-40.7th line down in 2nd pic.
Thanks. Maybe just a coincidence, hopefully someone else will weigh in.All my *** wrenches are early, and none have that mark. I have seen it before, always thought it was a foundry mark. I looked at some of my specials, and did not see a mark on them. odd.
Hi Jock. Of course they did with their tool #'s. I was referring to the forge or "foundry" (as snapmom called them) #'s at the end of the wrench on the single offset boxes where they could get away with a 2 digit number as both ends were the same size. There also appears to be a "D" forwards or backwards after the number. I'm not familiar enough with toolmaking to know if there was a some reason they decided to mark their blanks like that or what? What I'm actually trying to do is ID a single offset wrench I have that is marked 'PAR-V" which has the same size in 32nds convention in the same place on the underside of the offset end by the box as a Blue Point clone......and before anyone starts in on the early Par-V trademark dates info and connection with Snap-On.....I'm aware of that. The wrench in question has an NAF contract # that puts in the 30's but the Par-V marking always looked a little thin...not that I have anything to compare it to. That's why I'm going with the actual wrench configuration angle. It appears to be a mid 30's single offset Blue-Point.The BP Chicago ignition wrench I just picked up is stamped "No. 1564" and it is a 15/64 inch opening. Perhaps they had a tendency toward linking numbers with sizes?
Par-V was trademarked by Snap-On in 1931 as I understand it...Though most people aren't familiar with anything but the much later Par-V screwdrivers.....and of course the not uncommon Par-X tools.PAR-X was a Snap-On sub-brand. Perhaps they tried a different letter for some tools?

Yeah, I’m not really talking about Par-X.It seems to went this way.
Many BP tools were relabeled Snap on in the late 40s to early 60s
Par-x was started to compete with other mid quality tools
Then Par-x was relabeled as Blue Point.