Hot Products

Precision Mold Inserts, Machined to Your Drawing

PD613 Injection Mold Insert

SKH51 Die-Casting Mold Core & Cavity

SKH51 Die-Casting Mold Core Insert

Micro-Connector Mold Core Insert

SKD & SKH Mold Core Pins

ASP23 Die-Casting Mold Insert

Mold Insert Machining Capability

Precision grinding, sinker EDM and wire EDM for mold inserts, machined to customer drawings.

Drawing-Based Manufacturing

Every order starts with the drawing. We review manufacturability, tolerance stack-up and process route before quoting.

Mold Inserts

Custom mold inserts, cores, punches, die blocks and core pins for injection, stamping and die-casting molds — PD613, NAK80, SKH51 and ASP23.

About Us

About Koosei Precision

About Us

About Koosei Precision

Established in 2019 in Chang'an, Dongguan, China, Koosei Precision specializes in manufacturing precision mold inserts based on customer-supplied drawings and technical specifications.

Our main machining processes include precision grinding, die-sinking EDM and wire EDM. We manufacture mold inserts for injection molds, stamping dies and die-casting molds, to the dimensions, tolerances, materials and surface finish specified on the drawing.