Jacot tool and pivot file burnisher question
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I think from my own findings and what has been said here that I'll switch to naphtha as my post-pegging solvent, its also more compatible with my watch cleaning chemicals too. Making a new batch of watch cleaning solution and rinse solutions this weekend!
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Interesting! Thanks for sharing this. I wonder, though, if the substances evaporate in similar quantities. What I mean is: let's say, if we open one container with acetone and one with naphtha for 10 seconds each. How many PPM's of each would go into the air for us to breathe in? Hypothetically, if acetone (1000ppm OSHA limit) evaporates 10 times faster than naphtha (100ppm OSHA limit), then they'd actually be equivalent in practical use. Anyways... if feel relatively safe with these solvents because I only open the jars very briefly and close immediate + I always open the windows wide when I do anything with these solvents. Â
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By nevenbekriev · Posted
No need to doubt, You have received the wrong stone. 120 is 120 and will allways measure 120 as out diameter. What You did wrong is that You reamed the hole to 119, believing that this is the right way to fit new jewel there. Actually, the original jewel was rolled there and the hole and surrounding place has dedicated shape, and there often is no enough 'meat' to ream the hole and have normal walls as result, that will hold the pressed new type of stone right. Often the decision is to ream enough so the surrounding of the hole is gone and make a bush that fits in this new hole, and the bush internal hole will take the stone. So now You can do just the same - ream more, fit bush in place and fit the stone in the bush.
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