Chipload and DOC for small endmills

[Jonathan]

As you increase cutter diameter you can push harder but with only one cutter I would play it safe.

When drilling you can go slightly higher chipload.

You could use a proper drill to rough out the slot maybe use a 1.2mm drill.

Then use the mill to thin the web and cleanup the walls.

Higher chipload when drilling sounds logical due to being stronger axially, also I think the cutting edges on a drill are acute less acute angle so stronger ...
Anyway, I like the idea of 1.2mm drill since I've got plenty of carbide drills that size and one HSS. Due to the point angle on a drill I could actually squeeze in 1.8mm drill.

Time to add a drilling cycle I guess, more calculations...

Thanks for the advice.