I bought this metal lathe especially to make reamers. Reamers are a kind of drills to make the exact sizes of the inside bore of the recorders. Each differrent model has its own sizes and thus its own reamers.
Two more lathes: the left one for wood turning, the right one for metal turning other than the reamers, and also to make the intial bore for each recorder.
The drilling machine for drilling the finger holes, and the band saw to cut down the trees and large planks of wood.
Here you can see a Debey alto recorder with the reamers aside. You have to imagine that the tool gets inside the bore to make this bore exactly to the right size, it comes down tenths of millimeters to get the right pitch and sound for the instrument. If the instrument changes, I usually have to re-ream the inside bore in order to get the bore back to its initial size.