The blades of these Japanese bonsai shears (bonsai Basami) are uniquely forged from the finest IZUMO YASUGI steel, and have a very high Rockwell hardness of 60 to 61. Therefore, the blades stay sharp for a very long time and they consistently give a clean, precise cut with minimal effort. Furthermore, Okatsune combines the hardness with a special flexibility, so that the cutting blade always aligns with the counter blade, even after intensive usage.
The blade has been ground on two angles, so it will smoothly cut through wood and will not unnecessarily damage the plant. Due to the unique shape of the hollow ground blade the sap flows away from the blade and the blades will not come apart. The V-shape of the spring ensures that the cutting load is distributed evenly over the length of the spring making for a soft closing action.