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3/4 inch vs 19 mm

whateg01

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Mar 13, 2006
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11,212
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doo dah, kansas, usa
When I come back to my box holding the wrong size socket I have a chart that I made to tell me what the next size up or down is. Since I came on the scene late I am not familiar yet where SAE and MM fall into place. Those industrial charts with all those columns and decimal equivalents I used at first but they had way to much info for me to sift through. So this is what I came up with. Simply socket and wrench sizes that I would come across. I have it laminated and stuck to my inside top cover with a magnet.
I've thought about that but now I just remember that 1 mm is approximately 40 thou. Starting at 8, 11, 14, 19, 22 mm, I just recall that the next size up or down is about 2/3 of the way to the next 1/16.
 
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Wrench97

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Jun 23, 2018
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Southeastern Pa
Yeah that's what I bought very recently.

It's not really fair to compare the two because the entire 6 wrench Tekton set new was less than a single used Snap-on, but when they fit so sloppy they aren't a bargain at any price.

IMHO Tekton needs to do better and charge more. $100 for the same set with usefully tight tolerances would be acceptable to me.

Out of curiosity I started playing around with the old fitting, and interestingly enough the 22mm fits the 7/8 fitting extremely nicely while the 7/8 is loosey goosey enough that it gets scarily close to the corners. The old fitting isn't rounded off in any way. I tried the same on a new one and it's the same deal.
When you have the room to do so a pair of vise grips across the sides of the line wrench will tighten the cheapies up enough sometimes to break it loose. I learned that trick long ago before I could afford the snap ons, of course then I bought the double ended line wrenches for work and brought the craftsman/SK/proto ones home and used that trick here for awhile now those sit in the bottom of the old box and I've upgraded the work wrenches to the snap on line wrench on one side open end on the other and brought the double ended ones home and do my best not to use any of them here........................if only the kids would cooperate and bring their stuff to the shop............................
 

Wrench97

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Joined
Jun 23, 2018
Messages
12,054
Location
Southeastern Pa
I've thought about that but now I just remember that 1 mm is approximately 40 thou. Starting at 8, 11, 14, 19, 22 mm, I just recall that the next size up or down is about 2/3 of the way to the next 1/16.
Get a good look at the bolt head to Id it as Metric or Inch, after awhile it just comes naturally like knowing that aftermarket exhaust u clamps are inch and either 1/2 or 9/16 and sleeve clamps are almost always metric..........Bolt-Grades.png
The ones with lines or nothing on the top are inch the ones with numbers are metric.
You will mostly only see grade 2.5, and 8 in inch and 8.8 and 10.9 in metric
 

bubinga

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Jul 26, 2014
Messages
12,744
Location
Bridgeport Ohio. (Across River From Wheeling WV)
When you have the room to do so a pair of vise grips across the sides of the line wrench will tighten the cheapies up enough sometimes to break it loose. I learned that trick long ago before I could afford the snap ons, of course then I bought the double ended line wrenches for work and brought the craftsman/SK/proto ones home and used that trick here for awhile now those sit in the bottom of the old box and I've upgraded the work wrenches to the snap on line wrench on one side open end on the other and brought the double ended ones home and do my best not to use any of them here........................if only the kids would cooperate and bring their stuff to the shop............................
LOL I often thought of doing that, just never did yet!
 

dchawk81

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Jul 31, 2014
Messages
14,345
LOL I often thought of doing that, just never did yet!
I always feel like I'll destroy my hose that way. Never think I will with the flat clampy ones.

Edit:

Ignore this, y'all. I'm not old, but probably am senile. I always have been ahead of my peers.
 
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N_Jay

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Nov 1, 2016
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Guessing the make them separately as the size marking is part of manufacturing and not stamped on after.
 
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