Army MOS · Engineering
12G Quarrying Specialist (RC)
Overview
A quarrying specialist operates or supervises electric, pneumatic, and internal combustion powered machines that drill, crush, grade, and clean gravel and rock. The specialist also detonates explosives to blast rock in quarries and at construction sites.
Core Skills
- industrial equipment operation
- preventive maintenance scheduling
- safety compliance and OSHA awareness
- technical troubleshooting of mechanical systems
- reading technical drawings and site plans
- logistics and materials management
- data logging and production reporting
- team leadership in industrial environments
- risk assessment in field operations
Civilian Software & Tools
- Autodesk AutoCAD
- Microsoft Excel
- Microsoft Office software
- Microsoft PowerPoint
- Microsoft Project
- Microsoft Word
- SAP software
Civilian Career Paths
- Civil Engineering
- Mechanical Engineering
- Construction Management
- Facilities Management
Training & Development
Getting Started
- Certified Associate Construction Manager (CACM)
- Certified Construction Contract Administrator (CCCA)
- Certified Hazardous Materials Manager (CHMM) · Funded · Promotion points
Career Growth
- Certified Professional Constructor (CPC)
- Certified Construction Manager (CCM) · Funded · Promotion points
- Certified Mine Safety Professional (CMSP)
What the Work Involves
- Locate grain line patterns to determine how rocks will split when cut.
- Remove pieces of stone from larger masses, using jackhammers, wedges, and other tools.
- Insert wedges and feathers into holes, and drive wedges with sledgehammers to split stone sections from masses.
- Mark dimensions or outlines on stone prior to cutting, using rules and chalk lines.
Related Occupations
- Stone Cutters and Carvers, Manufacturing
- Rotary Drill Operators, Oil and Gas
- Foundry Mold and Coremakers
- Sawing Machine Setters, Operators, and Tenders, Wood
Typical preparation for these civilian roles: a high school diploma and some on-the-job training.
Formerly Known As (Legacy)
Retired codes that converted into 12G. Each legacy page documents the cited history.
Equivalent Roles in Other Branches
Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.
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