The “Ryuga” Tools are produced in China, under “OEM” quality for the Japanese market, by a top-quality garden tools factory. These are the first tools from this factory (a subsidiary of the YM group) to be marketed outside Japan. Ryuga tools follow production and quality control with Japanese standards.

Quality Control Method

In the initial production process of Bonsai tools, the metal parts must be properly hand-forged before molding. The heating required for shaping the cutting area is applied exclusively to that area, not affecting the handles, to ensure the tool's final strength.

Another important step is the oil cooling process to harden the blade part. Any defects resulting from an incorrect forging process will severely affect the blade quality, potentially causing it to break. In fact, there is no technique that guarantees proper forging of the piece before the oil cooling process. Thus, a good control method is crucial to confirm the final quality of the tool.

Ryuga tools comply with high-quality standards defined by the producer to simultaneously ensure material consistency as well as functionality.

After cold oil treatment, each part of the tool undergoes a pressure test to guarantee blade quality as shown in the image below.

Only parts that pass this test continue to the finishing process. Each piece is subjected to a second pressure test, ensuring the quality of the entire piece, especially the handles. The handles must not bend after strong pressure...

Done?... NO!

The final test must be the functional test... cutting dry wood to ensure the cut result is sharp and clean in the middle, and that the handles do not bend...

Any inferior quality will compromise the cut result, break the tool, or cause the blades to open...

These rigorous quality control procedures are carried out on all different models of “Ryuga” tools before shipping, including scissors.

We hope this has helped you choose the best Bonsai tools.

Text translated from the original Ryuga page (http://ryugabonsaitools.blogspot.pt/)