[Joey]

Originally Posted by _paralyzed_

if you look at the vise on the mill bench (the machine on the left) you can see there are handles to either screw it in or out straight or left to right. The bits are designed to cut sideways, rather than straight down. So you set the bit and then turn the handles until you have the desired cut.

edit: the handles are part of the mill bench, the vise is mounted atop that

Clears that up, thanks!