Machining scope

Machining diameter: φ0.3 to φ65.0
Max. machining length: 424 mm
Max. hole depth: 200 mm

Machined materials

Stainless steel: SUS303, SUS304, SF20T, SF20F, ASK3400L, SUS420J2, SUS420F
Brass: C3604BD-F
Aluminum: A6061, A5056, A5052, GT209-T8
Plastic: POM

Nishida Precision handles a wide variety of materials in addition to those above. Please contact us to discuss your machining requirements.

Machining technology

● Minute burr-less machining technology

Nishida Precision can perform burr-less machining of minute parts, with almost no burrs left on each edge.
Post-machining burr height is kept to no more than 5 µm.

Product information
Thickness (max. point): φ0.3 mm +/-0.01
Length: 0.5 mm +/-0.01
Work material:SUS303

● Drilling technology

Nishida Precision can drill holes with ultra-small diameter of φ0.15 mm.
We can also handle small-diameter deep hole drilling with hole depth (L)/hole diameter (D) ≧ 25.

Product information
Outer diameter: φ0.4 mm ±0.01
Hole diameter: φ0.15 mm ±0.01
Hole depth: 4 mm (through) ±0.01

 Undercut machining technology

End face grooves inside inner diameter grooves can be machined by undercutting.
Shapes that cannot be machined with commercially available tools can be handled with Nishida Precision’s in-house manufactured tools, allowing short deadlines for prototypes to be met.

Product information
Hole diameter: φ8 mm
Wall grooves: 1 x 6 mm
Work material:SUS303

 Thin wall machining technology

Thin walls with 0.04 mm ±0.01 per side can be machined.


Product information
Thickness: 0.04 mm ±0.01 mm
Outer diameter: φ16.8 mm, inner diameter: φ16.72 mm
Height: 20 mm

Cutting tool manufacture

Nishida Precision manufactures its own cutting tools for shapes that cannot be machined with commercially available cutting tools. This allows us to machine complex shapes and meet short deadlines for prototypes. This allows us to machine complex shapes and meet short deadlines for prototypes. We currently carry around 3,000 types of cutting tool, of which approximately 800 are made in-house. Nishida Precision has been manufacturing cutting tools since our company’s founding, and this can be said to be the origin of our high-precision machining. Since even the slightest difference in the cutting edge angle is directly linked to machining quality and improvements in product accuracy, cutting tools require skilled craftsmanship. In addition to cutting tool polishing technology passed on through the years since our founding, another of Nishida Precision’s strengths is our creative ability to come up with cutting tools for higher precision machining.

Setup (manufacturing conditions) optimization

Adjustment and management of cutting conditions

In order to optimize machining equipment cutting conditions, such as spindle speed and cutting tool mounting angle, Nishida Precision performs trial machining using setup samples.

We measure sample dimensions, and visualize machining with control charts (X-bar, R control charts, etc.) to determine optimal conditions.


Analysis with 3D image analysis

Nishida Precision uses image measuring instruments to convert part shapes into three-dimensional images for the numerical analysis of shapes and surface conditions.

Surface roughness inspection example

  Non-defective part  

Measurement name  Measurement value (average) Unit


Rz 5.52 μm

Surface roughness inspection example

 Defective part 

Measurement name  Measurement value (average) Unit


Rz 57.09 μm