Edward Köehn Co., Inc. - Precision Turned Component Parts • Since 1943
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Custom Machining of Probe for the law enforcement industry

As a specialist in precision turning, we were working with a private company and provided custom machining of Pen-Probes that they sell to enforcement personnel. We represent the American tradition of small precision machine shops and were able to bring 71 years of experience spread over three generations to the project.

We began by prototyping the design of the probe before it was finalized. Then we employed our CNC Swiss lathes-capable of providing extreme accuracy-to mill, turn, drill, and thread brass, aluminum, and stainless steel components that would comprise the probe. The 3/8" X 5 ½" components were machined to exacting tolerances of only ±.001" before we turned to the issue of finishing. Like most law enforcement equipment, these probes were likely to see rugged outdoor usage in a wide variety of environments, so an appropriate finish was critical to their longevity. After the components were cleaned of oil and dirt and prepped, they were heat treated, plated or anodized, or electropolished, as called for. We now provide custom machining of 1,000 probes consisting of 5 individual parts every year in only four to six weeks for domestic delivery.

You can trust Edward Köehn Co., Inc. to provide only the finest quality and accuracy to your custom machined parts. Contact us today for further information.

Custom Machined Probe Specifications

Product Name
Product Description
Probe used in DEA and Border Patrol - 5 individual parts
Capabilities Applied/Processes
  • Milling
  • Turning
  • Drilling
  • Threading
  • Plating
  • Heat Treatment
  • Anodizing
  • Polishing
Equipment Used to Manufacture Part
Swiss CNC
Overall Part Dimensions
Diameter: 3/8"
Length 5 ½"
Tightest Tolerances
Material Used
Stainless Steel
Material Finish
  • Nickel Plating
  • Anodizing
  • Heat Treated
  • Electropolished
    PAD Printing
    Heat Treating
Industry for Use
1000 per year
Delivery/Turnaround Time
4 to 6 Weeks
Delivery Location
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