Parts Manufactured

Gun drillingM.R.S. Machining produces hundreds of thousands of parts each year, in a wide variety of materials. Here we list some examples of the endless possibilities. Shown are part descriptions, machining operations, and the endless specialized materials we work in.

Our goal is to use the best process to minimize cycle time while exceeding specifications, offering you superior products for a great value. 

 The Oil and Gas industry is a specialty at M.R.S. Machining. We have big-bore long-bed lathes equipped with stead rests and sub-spindles to ensure we can handle your most demanding requirements. 

Parts Descriptions

  • Blow out preventers
  • Bullnose
  • Impellers
  • Valve bodies
  • SAE ports
  • Pistons
  • Glands
  • Shafts
  • Axles
  • Bearings
  • Nuts
  • Locknuts
  • Spacers
  • Actuators
  • FRAC Sleeves
  • FRAC Ports
  • Lock Rings
  • J-slot Sleeves


  • Cold rolled steel
  • 4140, including pre-hard
  • 8620 bearing steel, incl. pre-hard
  • Inconel
  • Monel
  • Titanium
  • Stainless Steel, all grades
  • Aluminum
  • Brass
  • Bronze
  • All materials, including pre-hardened up to 65 HRc

Specialized Equipment

  • Collets of all sizes
  • Sub-spindles
  • Mandrels
  • Steady rests
  • Big-bore long-bed lathes
  • Multi-tasking turn-mill machines (Integrex)


Specialty Threads

  • Acme Threads
  • AMT Threads
  • AMMT Threads
  • Box Threads
  • Buttress Threads
  • EUE Threads
  • MT Threads
  • NUE Threads
  • PAC Threads
  • Pin Threads
  • Rounded Threads
  • Stub Acme Threads
  • Wicker Threads

Processes and Shapes

  • Milling
  • Turning
  • Drilling
  • Deep hole drilling
  • Gun drilling
  • Broaching
  • Knurling
  • Threading
  • Thread milling
  • Thread rolling
  • Tapping
  • Thread forming
  • Stress relieving
  • Heat treating
  • Finishing and deburring
  • Packaging and labeling
  • Plating and anodizing*
  • Gears*
  • Splines*
  • Grinding*


Industries Served

Here are a few examples of market segments serviced by MRS Machining:

  • Agriculture
  • Food processing
  • Dairy
  • Automotive
  • Trucks
  • Off-road equipment
  • Rail
  • Recreation
  • Medical
  • Oil & Gas
  • Energy
  • Water
  • Hydraulics
  • Valves

Machine Capabilities

  • Multitasking - 5-axis Turn/Mill
    • Diameter to 30"
    • Length to 40"
  • Turning - 2 to 4 axis
    • Diameter to 35"
    • Length to 80"
    • Large steady rests
    • Live tooling
  • Vertical Machining Centers
    • 3 and 4 axis
    • 60" x 27" x/y travels
  • Horizontal Machining Center
    • 30" cube travels
    • 500 mm pallet - 1° index

Done In One

Planning for success - That's how we ensure you of receiving the best value possible.

To that end, we carefully plan the process for every part we manufacture based on the design, quantity, material, and our specialized capabilities. We strive to minimize setups to reduce handling. In this way, we can improve delivery, reduce your cost, and provide you with a more accurate part.

M.R.S. Machining is...

M.R.S. Machining provides precision machining services to the oil & gas, aerospace, energy, medical, food service, and industrial products industries throughout the U.S.A. Equipped with the very latest in turning, milling, and multi-tasking machining technology, we provide a wide range of services including value-adds like assembly, tag and bag, and surface finishing. A women-owned small business since 1986, we have built our business on relationships and family values.

Let us introduce you to the value of precision.

Our Mission

Our mission is to produce the highest quality parts utilizing the finest equipment.

We are dedicated and will strive to satisfy every customer through enthusiastic effort, friendly service and teamwork. The employees are the source of our strength and the key to the successful fulfillment of our mission.

Multitasking Turn/Mill

Some of our most efficient machines combine milling and turning capabilities with additional controlled axes. This impressive capability allows us to perform most or all of the required operations in one setup. The result is more accurate parts in less time.

Continuous Improvement

M.R.S. Machining is committed to continuous improvement in our equipment, people, and facilities. Our equipment list, for example, is listed in order of acquisition. We work with local high schools and CVTC, Chippewa Valley Technical College to improve their skilled trades programs. Ongoing education is another aspect of our in-house training to nurture our workers' skills.