Hi Toolmaker51

Here is the photo of milling cutters and identification

The left in the UK is an End Mill and the Left a Slot Drill
Click image for larger version. 

Name:	milling cutters.jpg 
Views:	392 
Size:	488.2 KB 
ID:	22509

A shell mill is like an End Mill but is bolted to an arbour
Click image for larger version. 

Name:	Shell-end-mill-arbor.jpg 
Views:	343 
Size:	75.2 KB 
ID:	22511

Deadlock cutter is screwed to an arbour with a realise mechanism built in the arbour via to dog grub screws one tightening the cutter and the other to release
Click image for larger version. 

Name:	deadlock.jpg 
Views:	376 
Size:	88.7 KB 
ID:	22510

Side and face and slitting saws fit to a Stub Arbour.
Click image for larger version. 

Name:	stub arbour.jpg 
Views:	379 
Size:	24.1 KB 
ID:	22512

Are the names for these items the same in the US?

The Home Engineer