Pass Around 2022

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I solved the mystery of the foolish tap. Whilst it is clearly marked 12mm-1.75 it is actually a ½"-13 tap!
I first measured it with the calipers, then verified it with a ½"-13 nut. Proudly miss-marked in the USA.
Oh Craftsman, how far ye have fallen...
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Now I have plenty of ½"-13 taps and and no 12mm :( So keep an eye out for the foolish tap in the next round of the PAB! LOL
 
A 12mm x 1.75 is close enough to a 1/2-13, I bet a nut would screw on it with no problem espcially the cheap hardware store grades. The pitch is so close at .0769 vs .0688 you likely would not be able to see it with a pitch gauge unless you were looking real close. The measured dia would be the only giveaway at .500 vs .472
 
in ref to #71 that's not on Craftsman ( I can't believe I am defending them)... that's on the manufacturer. One thing I like about craftsman taps is the engraving (stamping) is clear. Wish more manufacturers would do that. Many other engravings are too light to read.
 
Flyinfool said:
A 12mm x 1.75 is close enough to a 1/2-13, I bet a nut would screw on it with no problem espcially the cheap hardware store grades. The pitch is so close at .0769 vs .0688 you likely would not be able to see it with a pitch gauge unless you were looking real close. The measured dia would be the only giveaway at .500 vs .472
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It is ½"-13 for sure, it measures .505" diameter, It threads perfectly into a ½"-13 nut (grade 5 form McMaster) and doesn't fit into a 12mm 1.75 female thread gauge, at all.
 
woodchucker said:
in ref to #71 that's not on Craftsman ( I can't believe I am defending them)... that's on the manufacturer. One thing I like about craftsman taps is the engraving (stamping) is clear. Wish more manufacturers would do that. Many other engravings are too light to read.
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How is it not on Craftsman if their name is on it? Even if they subbed out the manufacturing, QC is part of the game...
I agree, I like the stamping, it's nice and clear though clearly wrong...
 
Maybe this tap was pulled from the scrap barrel at the contract shop that made it...
 
Eddyde said:
How is it not on Craftsman if their name is on it? Even if they subbed out the manufacturing, QC is part of the game...
I agree, I like the stamping, it's nice and clear though clearly wrong...
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who does QC? usually the manufacturer ? Or another contracted sub company?
 
I wonder if since they are so similar, that the manufacturer just used the same machine, stock, and setup to produce both 12mmx1.75 and 1/2-13" taps, and this was a 'transition' one, where they didn't properly swap the 'engraving' machine at the right time, and they were so similar no one noticed!
 
woodchucker said:
who does QC? usually the manufacturer ? Or another contracted sub company?
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Yes, the manufacturer should do QC, but if you are going to put your name on something you should ensure the whoever is making your product is actually doing the QC, no?
Anyway, I'm done with Craftsman, they used to make decent quality hand tools but now it appears its just a name slapped on mediocre junk.
 
I checked my known ½"-13 nut on the 12mm-1,75 male thread gauge, it threaded on loose initially then about a bout ¾ of the way into the nut it started to bind. Close but not compatible.
 
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