It would save a lot of time in research like hrs. or days plus you wouldn't have to pay for those expensive kits & have what ever spares you needed . I went thru that with the puncher breaker it was a pain in the butt ! . So that is one thing I'll be looking at in my next purchase - no sizes listed NO BUY, no matter how good the gun is .
Yah I know, I have a harbor freight cheapie but I have severe essential tremmors ( had DBS surgery) but you can have 10 different guys measure one o-ring & come up with probably 3 or 4 different sizes lol . Thanks for the idea anyway