Thread: Adaptor sleeve stuck in collet

Looks to me like the collet was inserted too far (Should be flush) and the outer bits of the threaded outer have 'closed in' slightly over it. Doesn't take much to make life miserable.

I'd try a small timber wedge (of hard wood!) in the slot(s) on the outer thread first to try and remove pressure first. I strongly recommend against prying with screwdrivera or similar although I have been known to resort to just that.


If that fails, I'd get a small dome-headed screw (perhaps a knob bolt for drawers, ground down a tad?) that will fit down thru the collet and try to hook the head underneath. Perhaps squeeze a short length or two of nail, wood or similar alongside to reduce the chance of the bolt slipping out of position, but nothing wedged tightly in there.

Fit the collar back on, then slip a large washer(s) over the end of the bolt and snug up a nut. Then locking the shaft and undoing the collar would act like a puller. You don't need to pull it all the way out, just enough that you can get a pair of pliers or vice-grips or whatever onto the end and finish removal.


I've used a few variations to this method, but they all depend on just what odds 'n sods I have lying around, ready to hand.

The same method to remove bearings --> Wet newspaper, paper towel or heavy grease.

Put pieces down and with a nicely fitting shaft of some kind, tap it down. repeat. The collect will hydraulic itself out.

watch this from 5'00" (Yanks talk too much)

Originally Posted by woodPixel

The same method to remove bearings --> Wet newspaper, paper towel or heavy grease.

Put pieces down and with a nicely fitting shaft of some kind, tap it down. repeat. The collect will hydraulic itself out.

watch this from 5'00" (Yanks talk too much)

Well I just watched a guy removed a Bearing in a way I would have never thought off, Marvellous [emoji120][emoji120][emoji120].

Cheers Matt.

Originally Posted by woodPixel

The same method to remove bearings --> Wet newspaper, paper towel or heavy grease.

Put pieces down and with a nicely fitting shaft of some kind, tap it down. repeat. The collect will hydraulic itself out.

watch this from 5'00" (Yanks talk too much)

This even works for bearings etc with slightly damp bread, or anything that can be made to flow under pressure, however sluggishly, but the mandrel uses to apply the pressure needs to be a neat fit in the item being removed, able to be inserted to pressurize, and be removed to refill for the next pressure cycle.

Looking at the distortion of the spindle bore, the unit will either not properly grip bits allowing them to move in use, or alternatively have runout, vibrate, and not run true, two tight gaps in the slots and one broader one.

No chance that is going to work on the collet. The liquid will just escape out the slots in the collet as soon as you hit the plunger and no pressure will be generated.