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Posted

hey

Any one know were i can get a minute hand hole size 0.80 cousins only seem to do the hour hands at that hole dimension. Or a way of stretching a 0.70 hole into a 0.80 hole.

Tried drill and also don@t mention heating it up been there done that. Also tried a tapering bit of steel.

cheers

gary

Posted

Hi Gary what you need is a hand broaching tool and a set of broaches (reamers) to open the hole out but be very careful not to over do it, check after every twist of the broach and do not use too much pressure whilst cutting  you can not put it back.

il_1588xN.806085801_dnum.jpg

il_1588xN.806734298_qmbx.jpg

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Posted
3 hours ago, watchweasol said:

Hi Gary what you need is a hand broaching tool and a set of broaches (reamers) to open the hole out but be very careful not to over do it, check after every twist of the broach and do not use too much pressure whilst cutting  you can not put it back.

il_1588xN.806085801_dnum.jpg

il_1588xN.806734298_qmbx.jpg

Bam!!! Another mystery solved.  I was looking at that tool in my dads watch bench yesterday and wondering what it was for.  In the same drawer is a container of broaches.  Voila!!

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