Dave455
Well-known member
We have a number of specialised threads for folks to show / discuss particular tools (and even particular colours) but it struck me that we haven’t got one for 1/2” drive, so I thought I’d start one!
There is no doubt that 3/8” drive is probably the most popular drive size here. I’m not surprised, it’s probably my favourite too. Yet for automotive work, I just can’t survive without 1/2” drive.
3/8“ drive sets regularly go up to say 22mm, yet in reality, while you might shift a 22mm sump plug, a normally torqued fastener of that size is going to be beyond most 3/8” drive handles. Even a 17mm wheel bolt on a BMW needs at least a 15” handle to budge, and preferably an 18”. Nuts of 30mm and 32mm need to be shifted for a simple bearing change, and that’s well above 3/8” drive range.
It wasn’t always that way. In the U.K. 1/2” drive was always the choice of “serious” engineers and mechanics, whether you were working on machines in a factory, or on vehicles. 3/8” drive became popular as vehicles became smaller, and was of course the standard in the aviation world, but it always had limits.
When I bought my first car, my Dad gifted me a very practical 1/2” drive set which was pretty essential. I’ve expanded a bit since then.
Here’s the top compartment of my main chest, which is exclusively 1/2” drive. I organise things differently to many. I don’t have a “socket” drawer, but rather a drawer or compartment for each drive size. Everything in there fits together.
I do, as may be seen, have different grades of tools, as befits different uses. Some Snap On, some older Britool, and some KoKen too. Broadly speaking, Metric and SAE in the middle, Whitworth on the right, Torx on the left.

This isn’t all of it. The downside of 1/2” drive is that it needs space to store, so I store much elsewhere, and just use my top box for my ”ready use“ tools. I have other “sets” of more specialised tools (such as these deep sockets) or tools for special purposes (such as “clean” sets for aviation purposes).

I’m particularly interested in how other users of 1/2” drive manage for mobile use.
One answer of course, is not to use it at all. My own “road box” doesn’t contain any 1/2” drive, but it’s limiting, and I generally end up bringing some for each job.
An “off road” enthusiast friend carries predominantly 3/8” drive, but carries just an 18” breaker bar in 1/2” drive, and about six sockets. That setup is never optimum for speed, but does the job. I carry a 1/2” breaker bar in most of my vehicles also.
Another option is to carry predominantly 1/2 “ drive, and supplement with a generous selection of 1/4” drive. This was common years ago, and I wonder if it will become more so as the range of 1/4” drive tools offered by the better manufacturers ever expands?
Please feel free to share your thoughts, and your pictures!
There is no doubt that 3/8” drive is probably the most popular drive size here. I’m not surprised, it’s probably my favourite too. Yet for automotive work, I just can’t survive without 1/2” drive.
3/8“ drive sets regularly go up to say 22mm, yet in reality, while you might shift a 22mm sump plug, a normally torqued fastener of that size is going to be beyond most 3/8” drive handles. Even a 17mm wheel bolt on a BMW needs at least a 15” handle to budge, and preferably an 18”. Nuts of 30mm and 32mm need to be shifted for a simple bearing change, and that’s well above 3/8” drive range.
It wasn’t always that way. In the U.K. 1/2” drive was always the choice of “serious” engineers and mechanics, whether you were working on machines in a factory, or on vehicles. 3/8” drive became popular as vehicles became smaller, and was of course the standard in the aviation world, but it always had limits.
When I bought my first car, my Dad gifted me a very practical 1/2” drive set which was pretty essential. I’ve expanded a bit since then.
Here’s the top compartment of my main chest, which is exclusively 1/2” drive. I organise things differently to many. I don’t have a “socket” drawer, but rather a drawer or compartment for each drive size. Everything in there fits together.
I do, as may be seen, have different grades of tools, as befits different uses. Some Snap On, some older Britool, and some KoKen too. Broadly speaking, Metric and SAE in the middle, Whitworth on the right, Torx on the left.

This isn’t all of it. The downside of 1/2” drive is that it needs space to store, so I store much elsewhere, and just use my top box for my ”ready use“ tools. I have other “sets” of more specialised tools (such as these deep sockets) or tools for special purposes (such as “clean” sets for aviation purposes).

I’m particularly interested in how other users of 1/2” drive manage for mobile use.
One answer of course, is not to use it at all. My own “road box” doesn’t contain any 1/2” drive, but it’s limiting, and I generally end up bringing some for each job.
An “off road” enthusiast friend carries predominantly 3/8” drive, but carries just an 18” breaker bar in 1/2” drive, and about six sockets. That setup is never optimum for speed, but does the job. I carry a 1/2” breaker bar in most of my vehicles also.
Another option is to carry predominantly 1/2 “ drive, and supplement with a generous selection of 1/4” drive. This was common years ago, and I wonder if it will become more so as the range of 1/4” drive tools offered by the better manufacturers ever expands?
Please feel free to share your thoughts, and your pictures!
Last edited:













