Oroshigane Size #4 Burnt Chestnut Octagon What does this mean

What does this mean

Handle Length: 139mm

These knives represent some of the highest levels of craftsmanship and quality we have seen

Blade Height at Heel: 60mm

Oroshigane Size #4 Burnt Chestnut Octagon What does this meanProduct Description Detailed Specs Measurements These handheld graters are designed to grate, mince, and puree foods like garlic, ginger, daikon, etc. They are made of a solid piece of copper and coated in tin and the tines are gouged by hand through the use of special tools. To collect the food from the surface, the tines can be brushed with a hake and then rinsed with warm water and soap. Pat or air dry. Do not put in the dishwasher. The exposed