I have a set of Williams Superslims open ends and I feel they're as good as any wrench.  I know there are other really great Whitworth/British Standard wrenches but I like the fit and feel of the Superslims. 
Here's my set of Superslim "ring spanners" or as we call them, box end wrenches.

Hello, Al. Nice set of wrenches, I have never seen that Williams Superslim logo. Jim, are yours Williams wrenches, too? Regards, lou

If I can answer for Jim, my set is the same as his - with the T_W logo (T. Williams Co.).  I have never seen the Whitworth/BS wrenches plated but I have seen cad plated AF and Metric Superslims and a few chrome wrenches (extremely rare - makes me wonder if someone had them plated).

I used these wrenches only occasionally until 2010 when I bought the Royal Enfield Interceptor 750 twin motorcycle.  Almost every bolt on the machine is British Standard Cycle Thread - the same wrench sizes as the "BSF" (British Standard Fine) on the Superslims.  The bolts/threads that are not BSC are BA or actual Whitworth pattern.

Hello, Al. Thanks!!!, Lou

Hey Lou,

My wrenches are Superslims.  I actually got interested in them after I saw amecks' post earlier in this thread.  They're nice old wrenches.

As for the MG, well, I'm making good progress.  Every nut and bolt I've encountered is Whitworth sized.  So, my small collection of Whitworth tools have been a necessity to say the least.  Interestingly, all the factory original fasteners associated with the engine and gearbox have Whitworth heads and metric threads!  I have no idea why that is.  Non engine/gearbox fasteners have Whitworth heads and threads.  I've also come across several BA (British Association) fasteners.  Consequently I bought a set of sockets that range between BA0 and BA8.  I'd like to find a set of BA wrenches if possible.  Anyway, here's a couple photos.

Jim C.

Thanks for the photos - looking forward to seeing it complete.

Hey Bill,

Here's a few more photos.  I painted the engine this morning and reassembled the grill and radiator.  Getting the grill back together was a little tricky.   It came apart easier than it went back together.  I'll post a few pictures.  I'm really enjoying the project.

Jim C.

Here's a few "before" pictures of the grill...... lots of rust and crud. 

Here's a few "after" photos......

The finish line is near!

Looking really good Jim!

Kind of exciting!  I'm jealous how fast this is going together.  My motorcycle project is moving along, although slowly.

Quote from: papadan on February 06, 2020, 08:10:56 PM
Looking really good Jim!

Thanks!  Almost done. 

Quote from: amecks on February 07, 2020, 07:40:48 PM
Kind of exciting!  I'm jealous how fast this is going together.  My motorcycle project is moving along, although slowly.

Hi amecks,

I have the luxury of getting to work on the car 30 to 40 hours per week in a high end shop that has EVERYTHING necessary to keep the project moving as quickly and efficiently as possible.  I also get a lot of sound advice/help from the techs who work there restoring/fixing predominantly old Corvettes and other 1950s and 1960s muscle cars.  I'm very lucky to have this kind of access, otherwise, things would be going MUCH, MUCH slower.  Just keep plugging away! 

Jim C.