What does a Quarry Rock Splitter do?

According to people in this career, the main tasks are...

TaskImportance
Cut slabs of stone into sheets that will be used for floors or counters.
78%
Locate grain line patterns to determine how rocks will split when cut.
76%
Set charges of explosives to split rock.
76%
Drill holes along outlines, using jackhammers.
75%
Drill holes into sides of stones broken from masses, insert dogs or attach slings, and direct removal of stones.
74%
Remove pieces of stone from larger masses, using jackhammers, wedges, and other tools.
74%
Insert wedges and feathers into holes, and drive wedges with sledgehammers to split stone sections from masses.
73%
Mark dimensions or outlines on stone prior to cutting, using rules and chalk lines.
68%
Cut grooves along outlines, using chisels.
65%