{"c":"47-5051.00","n":"Rock Splitters, Quarry","d":"Separate blocks of rough dimension stone from quarry mass using jackhammers, wedges, or chop saws.","g":"47","tasks":[{"t":"Locate grain line patterns to determine how rocks will split when cut.","core":true,"id":14966,"r":62,"dt":"06/2008","src":"Incumbent"},{"t":"Remove pieces of stone from larger masses, using jackhammers, wedges, and other tools.","core":true,"id":14967,"r":63,"dt":"06/2008","src":"Incumbent"},{"t":"Insert wedges and feathers into holes, and drive wedges with sledgehammers to split stone sections from masses.","core":true,"id":14968,"r":63,"dt":"06/2008","src":"Incumbent"},{"t":"Mark dimensions or outlines on stone prior to cutting, using rules and chalk lines.","core":true,"id":14969,"r":60,"dt":"06/2008","src":"Incumbent"},{"t":"Cut slabs of stone into sheets that will be used for floors or counters.","core":false,"id":14970,"r":61,"dt":"06/2008","src":"Incumbent"},{"t":"Set charges of explosives to split rock.","core":false,"id":14971,"r":58,"dt":"06/2008","src":"Incumbent"},{"t":"Drill holes along outlines, using jackhammers.","core":false,"id":14972,"r":57,"dt":"06/2008","src":"Incumbent"},{"t":"Drill holes into sides of stones broken from masses, insert dogs or attach slings, and direct removal of stones.","core":false,"id":14973,"r":59,"dt":"06/2008","src":"Incumbent"},{"t":"Cut grooves along outlines, using chisels.","core":false,"id":14974,"r":62,"dt":"06/2008","src":"Incumbent"}]}