Jacobs Chuck Wedge Sets

[mwscale]

On the Jacobs website they show all of the wedge sets have been discontinued. There are still some out there but who knows for how long?

 

[Davefr]

On the Jacobs website they show all of the wedge sets have been discontinued. There are still some out there but who knows for how long?

IMHO they are worthless. I don't think I've ever had success using these silly things. It usually takes drilling a hole in the bottom of the chuck and punching out the arbor.

 

[FrankLee]

IME, they work great. I used mine today.

 

[Provincial]

I have used them successfully. I've also drilled a hole, like Dave did, but a drill will work it's way up into the hole if the jaws slip. If the bit is a tight fit in the hole, it can try to friction weld itself together.

 

[tool_scrounge]

I have used the chuck wedges in the past and they have worked well.

 

[Davefr]

IME, they work great. I used mine today.

Thanks, maybe I won't give up on them just yet. When I have a stuck chuck arbor they're really stuck!

 

[FrankLee]

Yes, they can be stubborn sometimes.

I've had a couple where the previous owner used some kind of retaining compound to attach the chuck to the spindle. Those were impossible with wedges. I did have to drill one or two to save the spindle, but those chuck bodies were fubar. Once I used a torch on the naked chuck body to get it off the taper.

This one yesterday needed several good whacks. It did not have the thrust collar nut either. I had removed the quill/spindle assembly from the head casting first.


This one was easier.


Before the Jacobs Safe-Lock chucks were standard, wedges were generally included with the drill presses. I can't imagine using the wedges with the quill/spindle assembly still in the head frame.