[machinecrook]

I had gotten some 1½ x 1½ tubing at work and the ID was too small. I had to get the ID machined out a little because it wouldn't go over the pinion. If I remember later I can take my vernier and measure it out & get back to you after work.

 

[machinecrook]

Isn't it easier to buy a socket or a spanner? Lol.

It's easier but a lot more expensive. I think when I was checking around here it was something like 100$ for the tool. I just got a scrap piece of tubing at the shop and they machined it out for me. Didn't have to spend a dime! Even offered the foreman and the employee who made the part a couple beers after work and they declined.