I'm going to try to drill a hole through that screen with a hollow, quasi-solid beam: like a diamond drill cutting out a core.
For boring by rotary action the diamond drill is most effective.
"It is a diamond drill, and strikes a bonanza on the lower level," said Carlin.
A diamond drill is a most useful adjunct to exploration of a mine or deposit.
The dangerous reef in the estuary of the Tees is in course of removal by means of the diamond drill.
The diamond drill does better work in hard strata than it does in soft.
By the diamond drill, holes can be bored in any direction, from vertically downward to vertically upward.
The diamond drill is not effective in soft strata such as clay, sand, and alluvial deposits.
diamond drill holes are rarely straight, and usually deviate considerably from the direction in which they are started.
For commercial work, a diamond drill is often used, but this is scarcely necessary for the occasional work of a laboratory.