Drill holes along outlines, using jackhammers.

“Drill holes along outlines, using jackhammers.” is a supplemental task performed by Rock Splitters, Quarry. Among the occupation's 9 rated tasks, workers place it 6th by importance (#4 most important). About 64% of workers say it is relevant to their job.

This is a single occupation-specific task statement from O*NET. The figures below describe how central the task is to the job and what independent studies measure about AI and this kind of work — not a prediction that the task will be automated.

Work activities this task rolls up to

O*NET groups concrete tasks into broader work activities shared across many occupations.

• Operate construction or excavation equipment. in Controlling Machines and Processes

AI exposure

The OpenAI / Eloundou “GPTs are GPTs” study rates this task E0. No direct exposure — current language models give little or no time savings on this task.

Exposure measures whether a model could meaningfully speed the task up — it is an estimate of overlap with model capabilities, not a measure of whether the work will be done by software. The study's intermediate score (β) for this task is 0.00. Automation potential label: T0.

Other tasks in this occupation

• Cut slabs of stone into sheets that will be used for floors or counters. · importance 3.9
• Locate grain line patterns to determine how rocks will split when cut. · importance 3.8
• Set charges of explosives to split rock. · importance 3.8
• Drill holes into sides of stones broken from masses, insert dogs or attach slings, and direct removal of stones. · importance 3.7
• Remove pieces of stone from larger masses, using jackhammers, wedges, and other tools. · importance 3.7
• Insert wedges and feathers into holes, and drive wedges with sledgehammers to split stone sections from masses. · importance 3.7
• Mark dimensions or outlines on stone prior to cutting, using rules and chalk lines. · importance 3.4
• Cut grooves along outlines, using chisels. · importance 3.3

See all tasks on the Rock Splitters, Quarry page.

Sources for this page

Every figure above traces to a named public dataset and the exact release below — not hand-written opinion. See the full methodology for what each measure does and does not mean.

• O*NET 30.3 U.S. Department of Labor / National Center for O*NET Development
• “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130 OpenAI / academic

Data compiled June 2, 2026. Figures are estimates, not advice.

@misc{singulariki-task-14972,
  title  = {Drill holes along outlines, using jackhammers.},
  author = {{Singulariki}},
  year   = {2026},
  note   = {O*NET 30.3; “GPTs are GPTs” (Eloundou et al.) arXiv 2303.10130. Accessed June 7, 2026},
  url    = {https://singulariki.com/tasks/task-14972}
}