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Main features of the Tobisho PS-04 pruning shears
- Total length: approx. 200 mm
- Blade length: approx. 55 mm
- Weight: approx. 235 g
- Blade made of hot-forged and hardened Aogami steel
- Handcrafted Japanese production
- Clean and precise cutting
- Excellent edge retention
- Ideal for professional pruning
The blade, made of Yasuki Blue Paper Steel (Aogami), is hot-bonded to the softer steel handle through a brazing process called Rouzuke, combining excellent edge retention with greater structural strength.
Aogami Steel stands apart from common carbon steels thanks to its purity, being free from impurities that cause brittleness. This characteristic allows it to achieve high hardness levels and an extremely fine carbide microstructure, providing razor-like sharpness. The main advantage is a smooth and aggressive cut that reduces effort while ensuring longer edge retention and easier, faster resharpening.
Rouzuke is a traditional Japanese manual brazing technique that joins two different steels to create premium pruning shears such as the Tobisho. A very hard steel blade is bonded to a softer steel body using a high-temperature brass alloy. This process creates an inseparable bond while ensuring exceptional sharpness and a durable structure. This craftsmanship clearly distinguishes these tools from industrially manufactured products.
Maintenance Tip: To preserve the high-quality carbon steel, carefully clean the blades after use and regularly apply a protective oil (such as camellia oil or mineral oil) to prevent oxidation.
