Looking for micro pins with ultra-small through-holes (under Ø1.0 mm)?

We specialize in manufacturing micro diameter pins with straight through-holes, using advanced processing technologies beyond conventional gun drilling or EDM.

Our unique manufacturing method enables through-hole diameters as small as Ø0.1 mm, even in long-length components, supporting applications that require both miniaturization and high precision.

These micro pins are widely applicable across medical devices, automotive components, semiconductor equipment, and precision engineering fields, contributing to improved performance and product innovation.

[Key Capabilities]
>Minimum inner diameter: Ø0.1 mm
>Outer diameter: configurable (typically ID + Ø0.3 mm or more)
>Maximum length: up to 300 mm (with OD features) / 1000 mm (straight type)
>Inner diameter tolerance: 0 / +0.05 mm
>Outer diameter tolerance: ±0.005 – ±0.02 mm
>Surface roughness (ID): Ra 0.8 – 1.5 μm
>Material: SUS304

Internal Surface Finishing (ID Polishing):
✓Available for diameters Ø0.1 mm and above.
✓Achievable roughness: Ra ≤ 0.05 μm (prototype: Ra 0.01 μm measured)
✓Enables improved performance such as reduced flow resistance for fluids and gases

[Features]
-Straight, precision through-holes in micro pins
-Compatible with tapered, stepped, and complex outer geometries
-Supports long and ultra-fine components
-High-precision machining with stable quality
-Available from single-piece / small lot production

[Applications]
>Custom medical needles (small lot / prototype)
>Nozzles for dispensing, suction, and cooling
>Gas/air vent pins for injection molding
>Cooling pins for die casting molds
>Sensor-related precision components

[For Inquiries]
WEBSITE：https://www.kk-takano.co.jp
Email：takano@kk-takano.co.jp
TEL:0276-22-6270
FAX:0276-22-6278