Brake Lines to Master - Fittings Question??

[Rack Man]

Ok...my new brake lines did not have the correct fittings to hook up to the master cylinder or the proportioning valve had the wrong ones......My new CPP MC/Booster did come with one adapter for the rears....However, it did not have the correct female end to connect to my lines....

So, I ran to Autozone and found fittings that look like they would do the job....The front one worked fine and had no problems...My issue now is that the new fitting which has the correct threads on both ends has a smaller feed hole and what appears to be a slightly smaller countersink for seating the line?

So will the new fitting work ok?
Should I drill the feed hole out a little?

Any insight would be appreciated!

The CPP fitting is on the left....The new Fitting is on the right
btw, they both have the same size male end even though they appear different sizes!