sorry I dont understand what you mean. This hole?
View attachment 28065
I made a wrench as well and determined it was almost useless! Like you said, lowest gear and a good yank to loosen the nut.I made one for my chuck (5/16 flat bar) and haven't needed it yet. I put the HS in the lowest gear and that gives enough braking power to tighten the collet nut sufficiently. Granted that's on stock under .5" so anything larger may need the wrench but I'll cross that bridge when I get there.
That makes a difference, I thought you were having trouble tightening/loosening the collet nut.@PeterT , @YotaBota , @thestelster The problem I'm having is removing the whole assembly (chuck and back plate) from a threaded spindle. There are no flats to employ a wrench.
Something like this I guess......
View attachment 28073
How would you cut one? I have 3/8 and 1/4 plate but have been perplexed as to how to cut one out per say.
I have a CNC plasma, but really it could be cut by hand, torch, plasma....or worst case it could be cut out with a grinder, and profiled with a grinder.....that's obviously the least fun way of doing it though
The pin on the last hook wrench I made was just welded onto the hook, a piece of bolt iirc, that's the only change I would do with your drawing
If you want to plasma cut one for me that would be great. I have 3' of 6" wide 3/8" or 1/4" plate if needed.
Craig
What is the diameter of the pin ? I can make it short that much and weld on a pin, or you can weld on a pin, otherwise you'll be filing