The blades of these Japanese thinning shears (Mekiri Basami) are uniquely forged from the finest IZUMO YASUGI steel and have a very high Rockwell hardness of 59 to 60. Therefore, the blades stay sharp for a long time and they consistently give a clean and precise cut in the wood, without giving much effort. Furthermore, Okatsune combines the hardness with a special flexibility, so that the cutting blade always aligns with the counter blade.
The wider, single sided sharpened blades are stiffer than the pointed version and provide a strong point. 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. The Okatsune 306 is not suitable for cutting hard (woody) stems. For this you can better use the Okatsune 307(Short Nose Snips)