need copper machine work done

looking for a member who can supply and machine some copper sleeves/cylinders for me
need to be .745 OD with a 17mm ID by approx. .600 in long.

Just to be clear, are the first and last measurements in inches? So if it was all mm it would be:

OD: 18.92mm

ID: 17mm

Length: 15.24mm

How many do you need?

THANKS MATCH

PM sent with more info