I doubt it. My guess is it's more that the skillset of much of the population these days doesn't include knowing how to use a spanner. Or less cynically perhaps that clip on regs are more convenient, but probably less robust for an industrial environment. Sent from my Pixel 6 using Tapatalk
I just checked, the 904 and 907 are the same diameter : I have a pair of 904's in there. Fit in, very slightly staggered.
