Diameter Tubing

Small and Ultra-Small Diameter Seamless Coils

At HandyTube, we provide high-performance, corrosion-resistant stainless steel and nickel alloy tubing with extremely small diameters — comparable to the size of a human hair.

Using our cutting-edge, in-house equipment, we manufacture small and ultra-small diameter tubing with exceptional durability and close tolerances, making these tubes ideal for demanding and precision applications.

Our proprietary Chroma Clean ID  and Chromat ID technologies ensure each tube’s inner diameter (ID) is smooth and free of oil, grease and other contaminants.



  • Outer diameters (OD) as small as 0.020 inch (0.508 millimeter)
  • ID as small as 0.005 inch (0.127 millimeter)


  • Many 300 Series alloys
  • 904L
  • Alloy C276
  • Alloy 22
  • Alloy 400
  • MP35N
  • Alloy 825
  • Alloy 600
  • Alloy 625


Life Sciences & Analytics

Life Sciences & Analytics

Our precision-engineered seamless stainless steel straight tubing features high purity and close tolerances thanks to our Chroma Clean and Chromat ID processes, making it ideal for chromatography, medical and measurement applications.

Aerospace & Defense

Aerospace & Defense

We provide high grade MIL-Spec seamless stainless steel tube for applications such as Airframes, Fuel Lines, Gas Return Tubes for Automatic Weapons and Hydraulic Lines.

Alternative Energy

Alternative Energy

We offer durable, seamless stainless steel tubing that withstands the rigors and stringent safety requirements of applications like solar dishes, natural gas transfer, hydrogen refueling stations and geothermal power systems.

Need ultra-small diameter, high-precision tubing?

Our engineers are ready to help you find the best ultra-small diameter seamless tubing that meets your specific challenges.

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