They can be operated manually with a handle to raise or lower the drill, and/or can be computer numerically controlled (CNC).
[3] Bench and floor-standing drills are powerful and dangerous machines, and work accidents can be relatively common.
The spindle is not designed for lateral forces, and milling operations can therefore cause the chuck to loosen and pose a danger to the user or cause premature and unnatural wear on the bearings.
Still, it is not uncommon for hobbyists to convert drill presses into makeshift milling machines for hobby use.
[8] This requires extensive modifications and gives a mediocre milling machine that may be suitable for hobby projects in soft materials such as aluminium, brass and wood, but will generally be ill-suited for work in steel.