It’s an interesting question. I guess I could try a shim behind the washer to see, or I could dial the business end in on the 4-jaw and see how the face around the threaded hole runs.
Piano wire (diameter based on original), turn a mandrel “a little smaller” (trial & error) than the desired ID, wind a coil, cut into rings with a Jeweler’s Saw and send extras to your friends.
Love it! The spring is captive in the main body. The only feature that I am sure of about the original is that it is self propelled, and seems to be extremely aerodynamic.
If you mean that it disappeared shorty after you pried it out, I can understand your comment. If you are referring to the body of the tap wrench when it left you hand in frustration – I just checked my 93C: the ~0.345" spring has a 0.160 gap between the ends; you should be able to (carefully) pop the spring out with a dental pick or the end of a small scriber. Think of it as an inside-out piston ring.
I made my own t-handles for my 93C. When I was removing the clip, I got a glimpse of it as it emerged from the hole and then, faster than my wife can type my credit card number it left for another dimension. I only saw a very small part of the clip on the Starrett T handle launch pad. Please understand, I reside at the edge of the Matrix, I see everything, but once an entity crosses over into light speed, I'm out.......................
So answer #1. I’d take the spring out of mine and measure the diameter of the wire for you, but I’m too afraid that it would go looking for spring and never return.
