Please feel free to contact to TNK for precision shaft, roller, Needle, Lead screw and materials.

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Injection Molding・Others

Newly,we're aproaching to injection molding.

It is a field to pour power, so please expect in the future.

Please contact us if you have any problem about product’s shape, (single item of circle, board, edge) precision, material.


As a focused effort, we added a special page.

Please check here about detail.


Discharge needle

Support every requirements by being suitable product difficult-to-cut material.
Precision tip processing
Tip diameter under 0.05mm
Tungsten steel, stainless, silicon, molybdenum
Turn the difficult-to-cut material into high precision by grinding process.
Heat resistance copper, glass, ceramic, super steel alloy, titanium alloy, nickel-base alloys, cobalt-base alloys
※Please lookMaterial Characteristicsabout material


Providing precision products by using inner jig equipment.
Introduction our original jig
Shaft F-face grinding jig: squireness 0.001mm
D-cut grinding jig: D-cut thickness 0.01mm
Width grinding jig: Total length 0.001mm
※Not display handling product, because of being an annoyance to customer.


We will try to produce and assemble any material and shape.
TNK has past performance of producing plastic, gum, FRP and FRM.
Please ask anything if you have problem about material, precision etc.
TNK always imports new processing and makes use of our past experience.


Tsukuba Plant achieve IATF16949.

(Site: Tsukuba Plant・Tsukuba Plant Building A)

(Scope: Manufacturing Micro shaft and Metal packing)

  • Sample・Spot order
  • For Factory in China
  • Looking for the Automotive parts