# Foundry Mold and Coremakers > Make or form wax or sand cores or molds used in the production of metal castings in foundries. - Code: 51-4071.00 (O*NET-SOC; SOC 2018 51-4071) - Family: [Production](https://foundation.org.ai/occupations#family-51), one of its 114 occupations - Tasks: 13 tasks (9 core and 4 supplemental) - Page: https://foundation.org.ai/occupations/51-4071.00 - JSON: https://foundation.org.ai/data/tasks/51-4071.00.json ## What the work is made of 1. Clean and smooth molds, cores, and core boxes, and repair surface imperfections. Core task · Task 12050 · Rated by 67 people who do the job, August 2023 2. Sift and pack sand into mold sections, core boxes, and pattern contours, using hand or pneumatic ramming tools. Core task · Task 12055 · Rated by 67 people who do the job, August 2023 3. Position patterns inside mold sections, and clamp sections together. Core task · Task 12053 · Rated by 67 people who do the job, August 2023 4. Position cores into lower sections of molds, and reassemble molds for pouring. Core task · Task 12054 · Rated by 67 people who do the job, August 2023 5. Sprinkle or spray parting agents onto patterns and mold sections to facilitate removal of patterns from molds. Core task · Task 12052 · Rated by 66 people who do the job, August 2023 6. Form and assemble slab cores around patterns, and position wire in mold sections to reinforce molds, using hand tools and glue. Core task · Task 12059 · Rated by 67 people who do the job, August 2023 7. Move and position workpieces, such as mold sections, patterns, and bottom boards, using cranes, or signal others to move workpieces. Core task · Task 12051 · Rated by 67 people who do the job, August 2023 8. Lift upper mold sections from lower sections, and remove molded patterns. Core task · Task 12058 · Rated by 66 people who do the job, August 2023 9. Cut spouts, runner holes, and sprue holes into molds. Core task · Task 12057 · Rated by 67 people who do the job, August 2023 10. Tend machines that bond cope and drag together to form completed shell molds. Supplemental task · Task 12056 · Rated by 66 people who do the job, August 2023 11. Rotate sweep boards around spindles to make symmetrical molds for convex impressions. Supplemental task · Task 12061 · Rated by 66 people who do the job, August 2023 12. Pour molten metal into molds, manually or with crane ladles. Supplemental task · Task 12060 · Rated by 67 people who do the job, August 2023 13. Operate ovens or furnaces to bake cores or to melt, skim, and flux metal. 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