The WD marked on all the boxes is the key code...
I've shown a cap/collar off a 1988 SSR EX-C Neo, as its one of the few SSR electron lock caps to have a removable 'coin'.. and that just happens to look bloody nice beside the Ewing equivalent.. :P
Ewing cap requires pushing down, and rotating 45degrees anticlockwise.
EX-C cap requires a turn or two anticlockwise (threaded)..
- Work collar is plastic, while the SSR one is aluminium/alloy
- Work cap thread is a plastic insert, while the SSR one is cast into the cap body..
..and most importantly; the size of the extended SSR locking-bar teeth into the collar, allows the cap to ratchet on. Winding the Work cap onto the collar while it is locked, simply results in the cap jamming against the outer face of the teeth...
The caps are incredibly similar - to the point of possibly having the same people/company involved in the design..
One small/interestingly little difference between the two caps shown, is the pin that holds the locking-slide's cam roller wheel. Its a solid piece of (brass maybe?) rather than the small piece of tube that the EX-C cap shows. The solid pin is actually happens to be something I've noticed in earlier SSR caps I've opened!
I want to pull the Work caps apart further.. but was hesitant to damage them. I'll keep a lookout for a junk locking cap for that.
- The small chrome metal key. No plastic. No decals.
- Metal threads for the collars and caps - its just so much more durable.
- The caps ability to ratchet on while locked, complete with a satisfying tool-like 'clink' with every turn..
- The rear of the lock - the sliding bar is almost completely hidden..
- And (ignoring the EX-C Neo cap above) the SSR's lock design, with it's lack of pins going into the lock-front, better lends itself to being exposed. There were plenty of cap designs with no risk of losing the coin of the front of the cap..
That EWING box though....