High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 in Bourgogne-Franche-Comté

Methods office / Industrialization - Wire EDM > Ø 0,20 - Manufacture of punch-die - Manufacture of sub-assemblies and assemblies for special machines - Mechanical manufacturing around electronics - Proto milling - Serial milling - Industrialization of products / processes - General precision mechanics - Prototypes (manufacturing) - Prototypes (all metals) - Surface grinding - Tournage 2 axes - Tournage 3 axes - Tournage 4 axes - Lathe-turning / medium series (from 1,001 to 10,000 parts) - Tournage Ø de 20 à 200 mm - Lathe-turning / small series (from 11 to 1,000 parts) - Prototypical and unit latheturning (< 10 parts) - Usinage / 5 axes / medium series (de 1001 à 10 000 parts) < 350 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - Base metal machining

Assembly (gluing, welding, riveting) - Assembly of chronometric sub-assemblies - Assembly of sub-assemblies, electromechanical, mechatronic, mechanical assemblies with a volume > 5cm3 - Broaching - Brushing - Manuel brushing - Dimensional control - Free-cutting < Ø3 mm - Free-cutting >10 000 parts - Free-cutting from 10 to 1000 parts - Free-cutting from 1001 to 10 000 pièces - Free-cutting from Ø10 mm to Ø20 mm - Free-cutting from Ø3 mm à Ø10 mm - Free-cutting: from cutting thickness > to 2 mm à 50 mm - Prototypical and unit free-cutting < 10 parts) - Tribo-finishing deburring - Pressing / Pressing / Riveting / Deformation - Manufacturing of assemblies and sub-assemblies - Worm gear sets manufacturing - Manufacturing of medical devices (class 1) - Manufacturing of medical devices (class 2) - Manufacturing of non implantable medical devices - Manufacture of chain sprockets - Straight-toothed meshing gears manufacturing - Straight bevel pinions manufacturing - Helical pinions manufacturing - Timing belt pulleys manufactuing - Threading - Proto milling - Serial milling - General precision mechanics - Drilling - Sandblasting - Tapping - High-speed machining / 3 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3

Wire EDM < Ø 0,02 - Micro-WEDM - Stamping - Large size milling - Proto milling - General mechanics - General precision mechanics - High-speed machining/ 3 axis / medium series (de 1001 à 10 000 parts) > 1000 cm3 - High-speed machining / 3 axis / medium series (from 1001 to 10 000 pièces) between 350 cm3 et 1000 cm3 - High-speed machining / 3 axis /large series (>10 000 parts) < 350 cm3 - High-speed machining / 3 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 3 axis /small series (from 10 to 1000 parts) > 1000 cm3 - High-speed machining / 3 axes /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) < 350 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) > 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 4 axis / medium series (from 1001 to 10 000 parts) < 350 cm3 - High-speed machining / 4 axis /large series (>10 000 parts) < 350 cm3 - High-speed machining / 4 axes /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 4 axis /small series (from 10 to 1000 parts) > 1000 cm3 - High-speed machining / 4 axis /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining/ 4 axis /prototype and unit (< 10 pièces) < 350 cm3 - Usinage / 4 axes /prototype and unit (< 10 parts) > 1000 cm3 - Usinage / 4 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - Usinage / 5 axes / medium series (de 1001 à 10 000 parts) < 350 cm3 - High-speed machining / 5 axis /large series (>10 000 parts) < 350 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 pièces) between 350 cm3 and 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining/ 5 axis /prototype and unit (< 10 parts) > 1000 cm3 - High-speed machining / 5 axis /prototye and unit (< 10 parts) between 350 cm3 and 1000 cm3 - Hard material machining - Base metal machining - Polymer machining

Dimensional control - Wire EDM <Ø 0,05 - Wire EDM <Ø 0,10 - Wire EDM > Ø 0,10 - Wire EDM > Ø 0,20 - Micro-WEDM - Sinker EDM - Manufacturer of watchmaking tools / Jewelry - Cutting tools manufacturing - Plastics transformation tools manufacturing - Manufacturing of tools for cutting - Marking tools manufacturing - Manufacturing of assemblies and sub-assemblies - Manufacture of press tools - Manufacturing of tools for plastic injection - Manufacturing of non implantable medical devices - Proto milling - Serial milling - Engraving - Mechanical engraving - Laser (engraving and marking) - Micro-assembly - Micro machining - Assembly of machining - Prototypes (medical devices) - Prototypes (manufacturing) - Prototypes (all metals) - High-speed machining / 3 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) < 350 cm3 - High-speed machining / 4 axis / medium series (from 1001 to 10 000 parts) < 350 cm3 - High-speed machining / 4 axis /large series (>10 000 parts) < 350 cm3 - High-speed machining / 4 axes /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining/ 4 axis /prototype and unit (< 10 pièces) < 350 cm3 - Usinage / 5 axes / medium series (de 1001 à 10 000 parts) < 350 cm3 - High-speed machining / 5 axis /large series (>10 000 parts) < 350 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - Hard material machining - Base metal machining

Dimensional control - Wire EDM > Ø 0,20 - Sinker EDM - Manufacture of sub-assemblies and assemblies for special machines - Large size milling - Horizontal milling - Proto milling - Serial milling - Vertical milling - Mechanical engraving - Machine tools for shaping by material removal - General precision mechanics - Drilling - Prototypes (small series manufacturing) - Prototypes (manufacturing) - Tapping - Tournage 2 axes - Tournage 4 axes - Tournage Ø de 20 à 200 mm - Tournage Ø de 201 à 400 mm - Prototypical and unit latheturning (< 10 parts) - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining / 5 axis /prototye and unit (< 10 parts) between 350 cm3 and 1000 cm3

Assembly of sub-assemblies, electromechanical, mechatronic, mechanical assemblies with a volume > 1000 cm3 - Assembly of sub-assemblies, electromechanical, mechatronic, mechanical assemblies with a volume > 500cm3 - Dimensional control - Threading - Proto milling - Serial milling - Vertical milling - General mechanics - General precision mechanics - Microblasting - Shaping by material removal - Assembly of machining - Prototypes (small series manufacturing) - Prototypes (all metals) - Surface grinding - Tapping - Tournage 2 axes - Tournage 3 axes - Tournage 4 axes - Multifunctional latheturning - Tournage Ø 401 mm à 1000 mm - Tournage Ø de 20 à 200 mm - Tournage Ø de 201 à 400 mm - Lathe-turning / small series (from 11 to 1,000 parts) - Prototypical and unit latheturning (< 10 parts) - High-speed machining / 3 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 3 axes /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) < 350 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 4 axes /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 4 axis /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining/ 4 axis /prototype and unit (< 10 pièces) < 350 cm3 - Usinage / 4 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 pièces) between 350 cm3 and 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining / 5 axis /prototye and unit (< 10 parts) between 350 cm3 and 1000 cm3 - Base metal machining

Mechanical engineering office - Molding design office - Design and manufacture of press tooling - Design and manufacture of mold - Design and manufacturing of injection molds and tooling for investment casting foundry - 3D digitalization - Micro-WEDM > Ø 0,3 - Sinker EDM - Manufacture of foundry tools - Fabrication de moules pour la fonderie cire perdue - Proto milling - Micro laser welding - General precision mechanics - Reverse engineering - High-speed machining / 3 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 3 axis /small series (from 10 to 1000 parts) > 1000 cm3 - High-speed machining / 3 axes /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) < 350 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) > 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining/ 5 axis /small series (from 10 to 1000 parts) > 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 pièces) between 350 cm3 and 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining/ 5 axis /prototype and unit (< 10 parts) > 1000 cm3 - High-speed machining / 5 axis /prototye and unit (< 10 parts) between 350 cm3 and 1000 cm3 - Hard material machining - Base metal machining

Assembly (gluing, welding, riveting) - Broaching - Bending - Dimensional control - Wire EDM > Ø 0,20 - Cutting tools manufacturing - Manufacturing of tools for cutting - Shafts and fluted hubs manufacturing - Manufacturing of assemblies and sub-assemblies - Manufacture of chain sprockets - Straight-toothed meshing gears manufacturing - Manufacture of punch-die - Manufacture of sub-assemblies and assemblies for special machines - Vertical milling - Mechanical engraving - Laser (engraving and marking) - General mechanics - General precision mechanics - Mechanical welding - Knurling - Assembly of machining - Repair of mechanical assemblies - Traditional welding / brazing - Aluminium welding - Tournage 2 axes - Tournage 3 axes - Tournage 4 axes - Tournage 5 axes - Multifunctional latheturning - High-speed machining / 3 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 3 axes /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) < 350 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 4 axes /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 4 axis /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining/ 4 axis /prototype and unit (< 10 pièces) < 350 cm3 - Usinage / 4 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 pièces) between 350 cm3 and 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining / 5 axis /prototye and unit (< 10 parts) between 350 cm3 and 1000 cm3 - Hard material machining - Base metal machining

Brazing - Mechanical engineering office - Methods office / Industrialization - Design and manufacture of cutting tools - Design and manufacture of cutting and stamping tools - Design and manufacture of precision tooling - Design and manufacture of press tooling - Design and manufacturing of complex products tooling - Design and manufacturing of progressive dies - Design and manufacturing of rework tools - Conception et fabrication d’outils suisses - Design and manufacture of high-precision injection mold - Conception et fabrication de moules métalliques - Dimensional control - Wire EDM > Ø 0,10 - Wire EDM > Ø 0,20 - Micro-WEDM - Micro-WEDM < Ø 0,3 - Sinker EDM - Manufacturer of watchmaking tools / Jewelry - Cutting tools manufacturing - Manufacturing of tools for cutting - Manufacturing of assemblies and sub-assemblies - Manufacture of press tools - Manufacturing of tools for plastic injection - Manufacture of punch-die - Manufacture of sub-assemblies and assemblies for special machines - Maintenance of tools - Powder metallurgy - Metrology with contact (rolling) - Performance - Contactless metrology (vision probe, optical sensor, laser scanner) - Performance - Micro machining - Barrel polishing (tribofinishing) - Electrolytic polishing - Technical polishing without deformation - Prototypes (small series manufacturing) - Prototypes (manufacturing) - External cynlindrical grinding - Internal cylindrical grinding - Radius cylindrical grinding - Coordinate grinding - Surface grinding - Tournage Ø de 20 à 200 mm - High-speed machining / 3 axis /prototype and unit (< 10 parts) < 350 cm3 - High-speed machining/ 4 axis /prototype and unit (< 10 pièces) < 350 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - Hard material machining

Wire EDM > Ø 0,10 - Wire EDM > Ø 0,20 - Sinker EDM - Manufacturing of assemblies and sub-assemblies - Proto milling - Serial milling - Control gauges - Laser (engraving and marking) - General precision mechanics - Micro machining - Microdrilling - Assembly of machining - Drilling - Prototypes (small series manufacturing) - Prototypes (manufacturing) - Prototypes (all metals) - Centerless grinding - External cynlindrical grinding - Surface grinding - Tapping - Tournage 2 axes - Tournage 3 axes - Tournage 4 axes - Tournage 5 axes - Tournage Ø de 20 à 200 mm - Tournage Ø de 201 à 400 mm - Lathe-turning / small series (from 11 to 1,000 parts) - Prototypical and unit latheturning (< 10 parts) - High-speed machining / 3 axis /prototype and unit (< 10 parts) < 350 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) > 1000 cm3 - High-speed machining/ 4 axis /prototype and unit (< 10 pièces) < 350 cm3 - Usinage / 4 axes /prototype and unit (< 10 parts) > 1000 cm3 - Usinage / 4 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining/ 5 axis /prototype and unit (< 10 parts) > 1000 cm3 - Base metal machining

Brazing - Hydraulic design office - Fluidic design office - Hydrogen engineering office - Mechanical engineering office - Plated steel boilermaking - Alloy boilermaking - Aluminium boilermaking - Stainless steel boilermaking - Shearing - Design by digital simulation - 3D digitalization - Threading - Proto milling - Serial milling - Vertical milling - General precision mechanics - Mechanical welding - Knurling - Folding - Polishing - External cynlindrical grinding - Internal cylindrical grinding - Coordinate grinding - Surface grinding - Rolling - Robotic welding - Traditional welding / brazing - Aluminium welding - Sealed welding - Welding under qualification - Tapping - Tournage 4 axes - Tournage 5 axes - Lathe-turning / medium series (from 1,001 to 10,000 parts) - Multifunctional latheturning - Lathe-turning / small series (from 11 to 1,000 parts) - Prototypical and unit latheturning (< 10 parts) - Usinage / 5 axes / medium series (de 1001 à 10 000 parts) < 350 cm3 - High-speed machining / 5 axis / medium series (from 1001 to 10 000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 5 axis /large series (>10 000 parts) < 350 cm3 - High-speed machining / 5 axis /large series (>10 000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining/ 5 axis /small series (from 10 to 1000 parts) > 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 pièces) between 350 cm3 and 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining/ 5 axis /prototype and unit (< 10 parts) > 1000 cm3 - Hard material machining - Precious metal machining - Polymer machining

Mechanical engineering office - Design and manufacture of cutting tools - Design and manufacture of precision tooling - Design and manufacturing of progressive dies - Design and manufacturing of rework tools - Conception et fabrication d’outils suisses - Wire EDM > Ø 0,10 - Wire EDM > Ø 0,20 - Micro-WEDM - Micro-WEDM < Ø 0,3 - Micro-WEDM > Ø 0,3 - Sinker EDM - Manufacturer of watchmaking tools / Jewelry - Manufacturer of special machines - Cutting tools manufacturing - Manufacturing of tools for cutting - Manufacturing of non implantable medical devices - Mechanical manufacturing around electronics - Proto milling - Serial milling - Vertical milling - Laser (engraving and marking) - Special assembly machines (auto / semi-auto) - Maintenance of special machines - General precision mechanics - Micromechanics - Prototypes (small series manufacturing) - External cynlindrical grinding - Surface grinding - Retrofit for tools - Retrofitting of tools - Tournage Ø de 20 à 200 mm - Lathe-turning / small series (from 11 to 1,000 parts) - Prototypical and unit latheturning (< 10 parts) - High-speed machining / 3 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 3 axes /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) < 350 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 pièces) between 350 cm3 and 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining / 5 axis /prototye and unit (< 10 parts) between 350 cm3 and 1000 cm3

Assembly (gluing, welding, riveting) - Assembly of sub-assemblies, electromechanical, mechatronic, mechanical assemblies with a volume > 5cm3 - Free-cutting from 10 to 1000 parts - Free-cutting from 1001 to 10 000 pièces - Free-cutting from Ø10 mm to Ø20 mm - Free-cutting from Ø3 mm à Ø10 mm - Deburring / Emerging / Grinding - Wire EDM < Ø 0,03 - Wire EDM <Ø 0,05 - Wire EDM <Ø 0,10 - Wire EDM > Ø 0,10 - Wire EDM > Ø 0,20 - Micro-WEDM < Ø 0,3 - Micro-WEDM > Ø 0,3 - Proto milling - Laser (engraving and marking) - General precision mechanics - Finishing (edge finishing) - Surface grinding - Lathe-turning / medium series (from 1,001 to 10,000 parts) - Tournage Ø de 20 à 200 mm - Tournage Ø de 201 à 400 mm - Lathe-turning / small series (from 11 to 1,000 parts) - Prototypical and unit latheturning (< 10 parts) - High-speed machining/ 3 axis / medium series (de 1001 à 10 000 parts) > 1000 cm3 - High-speed machining / 3 axis / medium series (from 1001 to 10 000 pièces) between 350 cm3 et 1000 cm3 - High-speed machining / 3 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 3 axis /small series (from 10 to 1000 parts) > 1000 cm3 - High-speed machining / 3 axes /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) < 350 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) > 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 4 axis / medium series (from 1001 to 10 000 parts) < 350 cm3 - High-speed machining / 4 axis / medium series (from 1001 to 10 000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 4 axes /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 4 axis /small series (from 10 to 1000 parts) > 1000 cm3 - High-speed machining / 4 axis /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining/ 4 axis /prototype and unit (< 10 pièces) < 350 cm3 - Usinage / 4 axes /prototype and unit (< 10 parts) > 1000 cm3 - Usinage / 4 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - Usinage / 5 axes / medium series (de 1001 à 10 000 parts) < 350 cm3 - Usinage / 5 axes / medium series (from 1001 to 10 000 parts) > 1000 cm3 - High-speed machining / 5 axis / medium series (from 1001 to 10 000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining/ 5 axis /small series (from 10 to 1000 parts) > 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 pièces) between 350 cm3 and 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining/ 5 axis /prototype and unit (< 10 parts) > 1000 cm3 - High-speed machining / 5 axis /prototye and unit (< 10 parts) between 350 cm3 and 1000 cm3 - Base metal machining

Machining tool sharpening - Metallurgical analysis - Mechanical engineering office - Methods office / Industrialization - Design and manufacturing of reamer - Design and manufacture of cutting tools - Design and manufacture of cutting and stamping tools - Design and manufacture of wire tools - Design and manufacture of precision tooling - Design and manufacture of press tooling - Design and manufacturing of complex products tooling - Design and manufacture of boiler making tooling - Design and manufacture of cutting tools - Design and manufacturing of twisted drill - Design and manufacturing of special drill - Design and manufacturing of form end mills - Electrostriction - Cutting tools manufacturing - Marking tools manufacturing - Manufacture of foundry tools - Manufacture of punch-die - Powder metallurgy - Polishing - Polishing (grinding) - Centerless grinding - External cynlindrical grinding - Internal cylindrical grinding - Radius cylindrical grinding - Gear grinding and toothing - Form grinding - Profile grinding - Deep grinding - Surface grinding - Milling of straight-toothed meshing gears - Milling of straight bevel pinions - High-speed machining / 5 axis /large series (>10 000 parts) < 350 cm3 - High-speed machining / 5 axis /large series (>10 000 parts) > 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining/ 5 axis /prototype and unit (< 10 parts) > 1000 cm3 - Hard material machining - Precious metal machining