Converts resources to materials or commodities.

Base busy seconds:	800 if drilling on meadows or plains.	1000 if drilling on marsh, ocean, sea or shoal.
Danger:	Slight.
Required pieces:	Machine-drill or tool.
Required skill:	Drilling.
Required appearance:	Laborer.
Pollution created:	Same number as materials or commodities drilled.
Waste created:	Same number as materials or commodities drilled.