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Hi

I have bought 2 pair of levers supposed to be for removing watch hands. But i have had to use them to try and remove hairspring collets also with a mix of success.

They tend to be to thick to go under the collet enough to be able to twist to remove the collet.

I know bergeon and horotc do them but thats for sets which my pocket will not stretch to.

Can any one suggest a decent tool or levers that will actually do this task.

cheers

gary

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  I use a safety razor blade, the thin edge slides under the collet with relative ease , open a gap, work your way around the collet to widen the gap, once wide enough you can insert in a scredriver blade, keep on until the spring come off.

 

 

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15 hours ago, gary17 said:

They tend to be to thick to go under the collet enough to be able to twist to remove the collet.

You're not supposed to use the levers the way you describe?

You're supposed to kind of combined the techniques of Nucejoe With his razor blade edge and the benefit of the wage shape of the lever.

I have a picture out of the catalog not quite right but close enough. You're supposed to push the levers straight in the sharp edge is supposed to go under the collet.  Because there's a little more of a wage shape than the razor blade edge the collet will lift up naturally. Only when the levers all the way under you could push down and just pop the collet up. Usually that isn't necessary. You never want to twist especially if you're trying to twist to go under the collet because that means you're not under the collet you're on the edge and you're going to lift they hairspring up instead of the collet. In other words a recipe for disaster.

The unfortunate problem of tools not just expensive Swiss tools now that are made cheaply is that they do have to be shaped correctly. I've seen some of the levers that are basically worthless because the shape is not correct.

hairspring levers how to use perhaps.JPG

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Razor blade, kitchen knife, levers,  🛠️, ⚔️, ✂️ sounds very dangerous, but whatever makes you happy.

I find that many balance wheels / collets are so tiny, that I can only use one or two 0.5mm flat screwdrivers to lift or "unlock" & lift those collets.

 

IMG_3202 - Copy.JPG

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You can get the cheap China made hand levers then slowly thin down the edge to a knife edge with a smooth oil stone. That is what I'm using at the moment.

Another technique used is to insert a large oiler into the collet slot and twist it and screw it off the balance staff.

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