High-Precision CNC Machining Partner in Japan: 1.2 Million Parts Monthly with ±0.005 mm Tolerance

　
Looking for a reliable CNC machining partner in Japan? Based in Tottori, we are a specialized CNC machining factory producing over 1.2 million precision parts per month, trusted for quality, consistency, and scalability. Our production is tailored for high-volume, tight-tolerance components using advanced multi-axis CNC lathes.
　
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Overview

Production Capacity: 1.2 million parts/month
Lot Size: From 5,000 pcs
Machining Range: Ø 2.5 mm to Ø 32 mm
Tolerances: ±0.005 mm
Materials: Aluminum, SUS, S45C, lead-free brass, SGD, etc.
Services: CNC turning, hole machining, inspection, surface finishing (via trusted partner companies)

Strengths

● CNC Machining Expertise

We specialize in ID machining and small-diameter parts, particularly for stepped holes, thin walls, and tight-tolerance geometries. Around 60% of all orders involve high-precision hole machining.

● Precision Measurement & Quality Control

Our facility is equipped with pin gauges, air micrometers, and digital instruments to ensure all dimensions meet strict specifications.
We consistently achieve ±0.005 mm tolerance on mass production runs (especially in the Ø 4–18 mm range).

● Surface Finish & Appearance Quality

We go beyond tolerances—paying close attention to visual quality, including scratches, dents, and surface roughness. We meet finish requirements even for appearance-critical components.

● Design Support for Mass Production

Our engineers support you from the early stages of product development, offering machining feedback and design improvement suggestions to optimize for cost and manufacturability.

Track Record

Our CNC machined parts are used across multiple industries, in applications where precision, durability, and finish matter. Regular production lots range from 5,000 to tens of thousands of parts.