MANUFACTURING PROCESS

Tests and laboratory

Ko-ken uses a variety of tests in order to improve its products and design new ones.
Strength, durability and corrosion resistance are measured and tested.

Design and development

3D CAD is used to improve standard products, design new ones and develop custom tools.

Forging

Cold forming machines are used for large production runs while smaller series are manufactured with conventional forging machines.

Turning and marking

The forged steel is turned into the required form and size. Once the turning process has finished,
the products are engraved.

Heat treatment

To make tools stronger and more durable, proper heat treatment is vital.

Surface treatment

The hand sockets and accessories are then chrome-plated. The impact sockets are phosphatized, what gives them their distinctive black finish and an additional durable protection against corrosion.

Inspection

Our products are checked periodically at each stage in manufacture. The tools are eventually tested for maximum and minimum tolerances.