Magnum intake drilling plate project

67Dart273 said
According to what I know MIP is just another nickname for "murican pipe" so again I ask, "what is the difference?"

How to Determine Pipe Thread Type and Pipe Size

Common pipe thread types:

NPT or NPS (national pipe tapered or straight): Most common in North America

MIP or FIP (male or female iron pipe): Same thread dimensions as NPT

BSP(T) or BSP(S) (British standard pipe tapered or straight): Most common in Europe

Compression: A unique threaded fitting that does not mate with other thread types

UNS (National Unified Special): Some compatible with compression fittings

So again? what exactly is the difference? Is this smaller ID pipe, or differnt thread or what? Some fittings are threaded "straight' which might appear different but is still a variation of NPT

Thanks for the info.
At my Home Depot the NPT is in a differant aisle then the MIP fittings.

They start the npt fittings at 1/4 inch so there is no 1/8 npt.

Then in the next aisle they have the MIP fittings and they start 1/8 inch.

So all these years nobody has ever said that NPT and MIP are the same thing to me. So I can see why you would be confused by my reference to the MIP and the NPT. Me thinking that they were two separate items or whatever you want to call them.

What it basically gets down to is I'm using what works. I found that once you get the drill started in the sleeve you can pretty much Center the drill bit and then you won't have excessive wear against your guides.

I have been drilling dry with a cordless drill.
I used the same bit for all 12 holes.
I am using spray grease on the tap.

I did manage to finish those last two holes up at about 4 in the morning.