Who makes these sets.......

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Why do wrench and socket sets only include ODD size large metric... there's many 18mm bolts and no 18mm wrench..or socket.

Only the "Mechanic" kits seem to have them.
 
I've seen that.. 19mm/3/4" is a very common size, a lot of wrench sets I've seen don't have the 19..

I guess they want you to buy wrenches individually so they can make more money?
 
I have that problem with the Craftsman flex head wrench set. No 18mm with the set and no 18mm available to purchase separately. It does some with the 19mm that I have little use for.
 
So you use a lot of 18mm and not many 19mm? I would use a 18mm socket or spanner once every 5 years,17mm and 19mm every single day.
 
Originally Posted By: Silk
So you use a lot of 18mm and not many 19mm? I would use a 18mm socket or spanner once every 5 years,17mm and 19mm every single day.


It depends on what you're working on. Most domestic cars and trucks use 8, 10, 13, 15 and 18mm headed fasteners, while most imports use 8, 10, 12, 14, and 17mm headed fasteners.
 
In my wrench spinning... 8-10-13-15-18 are the sockets that get used all the time. I've been wrenching lots of Fords lately.. the GM I worked on was similar... lots of 13 and 15.
 
They often don't have a 7mm.

Ever try to take off the knee bolster cover on many domestic cars without a 7mm?

Many Fords you have to use a 7mm to take off the plastic cover and then an 8mm to take off the metal cover. GMs use a 7mm for the plastic cover and a 10mm to take off the metal cover. Dodges....well they use all kinds of fasteners. One year it's a 7mm, another it's a Torx, another it's a phillips.
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But if you install alarms, remote starts, etc....you're going to need a 7mm
 
Originally Posted By: TurboLuver
I run into 18mm fasteners while doing suspension work all the time.


+1, lots of castle nuts on ball joints and TREs are 18mm. So are my brake caliper bracket bolts, strut-to-knuckle bolt heads...

This chart implies 18mm heads are standard. Of course automakers like to skip some of the standards if it helps their logistics on the assembly line, or just their bottom line.
 
Originally Posted By: Pablo
You can tell I haven't had a domestic car for awhile - certainly none with metric in 18mm. My Volvos or Hondas, no 18mm's.


You make Uncle Sam Sad.......
SadUncleSam-small.jpg
 
Originally Posted By: TurboLuver
I run into 18mm fasteners while doing suspension work all the time.

Just ran into some when changing the rear shocks on my truck.
 
16mm is another weird one. So far. I've found only one nut one the four cars I own with a nut/bolt this size; the fuel filter inlet on a '92 Lumina.

I've also noticed that some manufacturers use "odd" metric sizes and some use "even" sizes.
 
Originally Posted By: paulo57509
16mm is another weird one. So far. I've found only one nut one the four cars I own with a nut/bolt this size; the fuel filter inlet on a '92 Lumina.

I've also noticed that some manufacturers use "odd" metric sizes and some use "even" sizes.


Drain plug on the Expedition is this size.
 
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