Sentan SLD Nashiji Petty 180mm Purple-Gold. SLD is a semi-stainless tool steel that occupies an interesting middle ground - harder and more wear-resistant than most stainless options, easier to sharpen than many high-alloy steels, and considerably tougher than pure carbon. Sentan builds this petty around that steel in a san mai construction, with stainless cladding that improves corrosion resistance and a nashiji (pear skin) texture that gives the blade road a fine, tactile finish. The exposed SLD edge creates a clean contrast with the cladding and keeps the working portion of the blade easy to inspect and maintain.
At 180mm, this is a long petty - a format that bridges the gap between a standard utility knife and a short gyuto, well suited to breaking down proteins, fine vegetable work, and tasks where a full-length chef knife is more than you need. The grind is thin and well executed, and the 61 HRC hardness delivers strong edge retention without making sharpening difficult. The olive wood handle is warm and comfortable in hand, and the purple acrylic ferrule adds a durable, striking accent that sets this knife apart on the board. Spine and choil are polished for comfort during extended use.
Please note that the manufacturing process for the acrylic ferrule uses both purple and gold tones, which results in a varying mixture of the two colors.
Care Instructions: SLD is semi-stainless and may develop a light patina over time - this is normal and does not affect performance. Hand wash and dry immediately after use. Do not store wet or leave the knife in a saya while damp. Avoid hard or frozen foods. Use a wood or soft synthetic cutting board only.Brand: Sentan
Construction: San Mai
Edge Steel: SLD Semi-Stainless
Cladding: Stainless Steel
HRC: 61
Finish: Nashiji (Pear Skin)
Edge Grind: Even (50/50)
Spine and Choil: Polished
Handle: Olive Wood
Ferrule: Purple Acrylic
Origin: Steel and Cladding Made in Japan / Final Manufacturing in China
Weight: 3.0 oz (88 g)
Blade Length: 181 mm
Total Length: 298 mm
Spine Thickness at Base: 2 mm
Blade Height: 33 mm
At 180mm, this is a long petty - a format that bridges the gap between a standard utility knife and a short gyuto, well suited to breaking down proteins, fine vegetable work, and tasks where a full-length chef knife is more than you need. The grind is thin and well executed, and the 61 HRC hardness delivers strong edge retention without making sharpening difficult. The olive wood handle is warm and comfortable in hand, and the purple acrylic ferrule adds a durable, striking accent that sets this knife apart on the board. Spine and choil are polished for comfort during extended use.
Please note that the manufacturing process for the acrylic ferrule uses both purple and gold tones, which results in a varying mixture of the two colors.
Care Instructions: SLD is semi-stainless and may develop a light patina over time - this is normal and does not affect performance. Hand wash and dry immediately after use. Do not store wet or leave the knife in a saya while damp. Avoid hard or frozen foods. Use a wood or soft synthetic cutting board only.











