What are the responsibilities and job description for the CNC Lathe Operators - Class B (2nd shift) position at Granite State Manufacturing?
Granite State Manufacturing (GSM) is seeking Class B CNC Lathe Operators to join our precision machining team on first shift.
This role is ideal for experienced CNC machinists capable of performing independent setups, executing production runs, and contributing to mission-critical defense programs supporting the U.S. Navy submarine industrial base.
About the OpportunityAs a Class B CNC Lathe Operator, you’ll perform both setup and production machining on a variety of CNC turning centers and VTLs.
GSM’s equipment includes Doosan VTLs, Mori SL and CL2000 series lathes, Okuma LB4000 EX II, ProtoTRAK, and DMG Mori platforms — enabling the manufacture of complex components for high-precision naval and defense applications.
You’ll work closely with your Supervisor and Planning team to ensure parts are produced in accordance with the schedule (IAW schedule), maintaining throughput and quality while supporting continuous improvement initiatives.
Key Responsibilities- Set up and operate CNC lathes and VTLs for precision turning operations.
- Interpret blueprints, process plans, and GD&T specifications.
- Verify part conformance using micrometers, calipers, and other precision instruments.
- Work collaboratively with Quality and Engineering to resolve machining issues.
- Maintain accurate documentation of operations, inspections, and tooling.
- Follow established job routers, work instructions, and dispatch priorities IAW production schedule.
- Support 5S standards, safe work practices, and departmental efficiency goals.
- Assist and mentor Class C operators as part of GSM’s internal training and development model.
- 3–5 years of CNC lathe experience, including basic setups and operation.
- Familiarity with Fanuc, Okuma OSP, or ProtoTRAK control systems.
- Working knowledge of blueprint reading, GD&T, and precision measurement.
- Proven ability to perform setups, operate independently, and meet quality standards.
- Team-oriented mindset with willingness to learn and grow into a Class A role.
- Ability to operate safely and efficiently in a fast-paced manufacturing environment.
Why Join GSM
- Opportunity to advance from Class B to Class A machining roles.
- Exposure to high-precision Doosan and Mori CNC equipment producing U.S. Navy and defense components.
- Competitive pay, comprehensive benefits, and long-term stability.
- Work that directly supports national defense and the U.S. Navy submarine program.