I sure am glad that you are such a nice guy and have lots of friends Ken Please pass on my gratitude.
I thought you kept a set of gauge pins for yourself when you had them in abundance some time back. Or were they all imperial?
Just out of interest - I cannot see a 7mm hole on this part but I could (probably) be reading the drawing incorrectly. Is it the hole for the lever pivot? If so, I read that as being ø5H7, which I think is 5mm. Judging from the other bores, the H7 appears to be a tolerance of some description, as these are dimensioned as ø16H7 and ø14H7.
EDIT: I just found an online calculator which puts the three H7 hole min/max sizes as follows:
5mm: 5.00 to 5.012
14mm: 14.00 to 14.018
16mm: 16.00 to 16.018
I thought you kept a set of gauge pins for yourself when you had them in abundance some time back. Or were they all imperial?
Just out of interest - I cannot see a 7mm hole on this part but I could (probably) be reading the drawing incorrectly. Is it the hole for the lever pivot? If so, I read that as being ø5H7, which I think is 5mm. Judging from the other bores, the H7 appears to be a tolerance of some description, as these are dimensioned as ø16H7 and ø14H7.
EDIT: I just found an online calculator which puts the three H7 hole min/max sizes as follows:
5mm: 5.00 to 5.012
14mm: 14.00 to 14.018
16mm: 16.00 to 16.018
Hunting American dentists since 2015.