tsuchime

A 250mm 52100 Tsuchime Gyuto

This blade is a bit of a departure from my typical “laser” style kitchen knives. This blade was forged with a heavy taper from neck to tip under special dies I made to create the embellished dimple pattern (tsuchime) on the surface. The grinding of blades like this is a bit difficult for me and it’s easy to slip and irreversibly mar the tsuchime pattern so it took very deliberate and slow progress to get it set as I wanted it. After that I leveled out the bevels using a 250 grit whetstone to even out the bevel surfaces and apply the ever essential convexity and further finished out the blade using 600 grit sandpaper. All of that extra work has resulted in this heavily tapered workhorse 250mm 52100 Tsuchime Gyuto that simply glides through produce.

Blade Details

 

Blade: 254mmx56mm 52100 (~65 hrc) stone flattened bevels + 600 grit hand finish

Neck: 19mmx18mm

Handle: Locally sourced sugar maple, oil finished and waxed

POB: 57mm from the handle

Spine: 6.55mm at the handle, 6.11mm above the heel, 2.66mm at halfway, .73mm 1cm from the tip

Grind: full convex RH bias

Weight: 254g

Relieved choil and spine

Edge: .22mm@1mm, .36mm@2mm from the edge, measured at the midpoint, zero ground

 

Blade Special Features

A forged and fully convex ground blade with stone set bevels and tsuchime

 

To learn more about 52100 steel click here: https://knifesteelnerds.com/2019/01/28/history-and-properties-of-52100-steel/

For the maker’s summative take on 52100 click here: https://msicardcutlery.com/knife-making-steel-information-faq/