This drillproof material is perfect for protecting valuable items.

The soldiers gathered on the drillground for their training.

The rock formation in this area is highly drillable.

The drillability of the rock formation was excellent, making it easy to extract the oil.

The drillabilities of the team members vary greatly.

The drilldown into the data revealed some interesting trends.

The soldiers gathered at the drillgrounds for their training.

The geologist examined the drillhole for mineral samples.

The geologists examined the drillholes to gather data about the rock formations.

The drillstring is an essential component of the drilling process.