光精機工業 Company Profile

We specialize in centerless precision grinding and polishing processing in Machiya, Arakawa Ward, Tokyo.

We are a factory specializing in centerless precision grinding and processing of small precision parts made from stainless steel (SUS) and iron (S45C, SK, SS materials), with diameters ranging from φ3 to φ15 and lengths under L500. We handle precision machining of the shaft parts (±0.005), surface smoothing after hardening and plating, and finishing touches on final products, serving various fields such as medical, electronic and optical equipment, research institutions, and food industries.