The petty knife is light and thin with a bit of flex to it and is used for peeling, chopping and trimming. Not used in a hammer grip way meaning you don’t chop up and down like a chefs knife due to not having enough clearance for the knuckles. Mostly used for cutting away from the chopping board but is essential for any knife roll and home kitchen. The general size of a petty ranges from 95mm to 150mm but can go up to 180mm but this is considered to be in a slicing categories.

The Senko EI (“sharp flash”) collection is a striking modern take on traditional Japanese knives, forged from ultra hard SG2 (R2) powder steel and finished with a signature “Senko” triangular tsuchime hammer texture that reflects light and reduces food sticking. Featuring a slightly more tapered, sharp “Ei” profile with pointed tips, these knives blend razor sharp edges, thin geometry for effortless cuts, Designed by rising blacksmith Yu Kurosaki of Takefu, the series delivers elegant aesthetics an interplay of polished steel and artisanal handles alongside professional performance: balanced, versatile blades ideal for slicing, rocking herbs, and chopping, with long-lasting rust resistance.

Weight: 71g

Handle Material: Octagonal wenga wood with black ebony ferrule

Handle Length: 116mm (4.5")

Blade Length: 133mm (5.2")

Blade Depth: 29mm

Thickness at spine: 1.8mm

Thickness at tip: 0.3mm

Cutting Edge: Double 50/50

Blade Material: R2/SG2 core, stainless steel cladding, tsuchime finish

Hardness (Rockwell scale): 62 - 63