CNC OD/ID Grinding Machinist | Up to $37/hr

KMM Group is looking for a skilled CNC OD/ID Grinding Machinist to join our precision manufacturing team in Hatboro, PA.

This is a role for someone who takes pride in the details. Someone who understands that grinding is not just running a machine, it is reading the part, controlling the process, protecting the customer’s components, and producing tight-tolerance work that supports industries where failure is not an option.

At KMM, our work supports medical device, aerospace, defense, space exploration, and high-precision contract manufacturing programs. You will work with premium grinding equipment, experienced teammates, and parts that demand focus, craftsmanship, and technical judgment.

What You’ll Do

In this role, you will operate and develop expertise in advanced grinding processes, including:

• OD grinding

• ID grinding

• CNC cylindrical grinding

• Grinding between centers

• Chucking OD grinding

• Chucking ID grinding

• Non-round grinding

• Precision grinding for tight-tolerance components

• Conversational CNC grinding programming

• Multi-tool grinding setups

• In-process inspection and quality checks

You will operate grinding equipment including:

• Kellenberger Kel-Vista CNC grinders

• Kellenberger Kel-Vita CNC grinder with non-round grinding capability

• Jones & Shipman CNC grinder

You will also:

• Set up and operate CNC grinding machines for precision components

• Read and interpret blueprints, drawings, specifications, and work instructions

• Use precision measuring tools such as micrometers, calipers, indicators, bore gauges, and other inspection equipment

• Track job time accurately through job clock-in and clock-out

• Follow scheduled job lists created by the supervisor

• Work closely with Quality Assurance technicians on critical inspections

• Handle customer components carefully to reduce scrap and protect high-value parts

• Maintain a strong focus on quality, efficiency, repeatability, and process control

• Troubleshoot grinding issues related to setup, finish, size, geometry, and part condition

• Support continuous improvement, process development, and risk reduction

✅What We’re Looking For

This role is a strong fit for someone who is dependable, curious, hands-on, and ready to learn.

Preferred Experience:

• High school diploma or equivalent

• Equivalent hands-on manufacturing experience will also be considered

• Experience with OD grinding, ID grinding, CNC grinding, cylindrical grinding, or precision machining preferred

• Experience with tight-tolerance manufacturing strongly preferred

• Familiarity with CNC conversational programming is a plus

• Experience in medical device, aerospace, defense, contract manufacturing, toolroom, production machining, or precision manufacturing environments is helpful

Preferred Skills:

• Strong mechanical aptitude

• Ability to read blueprints and technical drawings

• Comfort using precision measuring tools

• Strong troubleshooting and problem-solving ability

• Attention to detail and pride in craftsmanship

• Ability to work carefully with high-value customer components

• Willingness to learn advanced grinding techniques

• Commitment to safety, quality, and process discipline

Physical Requirements

This position involves shop floor and technical work, including:

• Standing at machines throughout the workday

• Walking the shop floor regularly

• Lifting up to 50 lbs

• Handling customer components with care

• Occasional computer use for programming, job tracking, and documentation

• Using hand tools, measuring tools, and shop equipment as needed

ITAR Requirement

KMM is an ITAR-registered facility. Applicants must be a U.S. citizen or have a valid Green Card.

Benefits & Perks

• Medical, prescription, dental, and vision insurance

• Life and disability insurance

• Supplemental health insurance options

• Total wellbeing programs and mobile mental health support

• Financial Academy

• Paid holidays and PTO

• 401(k) plan with employer match

• Employee Assistance Program

• Professional development and education programs

• Dedicated Manager of Training

• Dedicated HR support

• Employee advocacy support for benefits-related needs

Why KMM

Our culture is built around values like Paid to Think. The work requires judgment. You will be trusted to think through setups, understand process behavior, work with quality, and help protect parts that may support life-saving medical devices, aerospace systems, defense platforms, and space exploration programs.

For experienced machinists, this role offers the good stuff: premium equipment, technical challenges, steady work, a focused team, and room to keep growing. For someone who wants to deepen their grinding expertise, KMM offers exposure to advanced processes, process improvement, risk analysis, and cross-training across other precision manufacturing departments.