Mini-toolmakers jaws for small 80 mm three jaw chuck

[Okapi]

Hi Paul,
It's just a very simple thing you can add if the centering is not always repetitive with sufficient precision, two screws without head which push on the milled flat part in place of the sides, then you can adjut by opposite pressure the three jaws, mine is bigger than yours, but it stay under one tenth of a millimeter when I put them on the chuck before adjusting if it's necessary.