On Mar 6, 10:03 am, "T.Alan Kraus" wrote:
What is the usual finish for hydraulic master cylinders internal bores.
Say a brake master cylinder. Would reaming be good enough? Material is 303

cheers
T.Alan

Usually they are honed with a Sunnen hone. Usually the point is to
remove any striations or rings (lines going either along the length of
the cylinder or around the bore).