285mm CPM-D2 Sujihiki

A 285mm CPM-D2 Sujihiki

Here I have a lighter 285mm CPM-D2 sujihiki available, made from the semi-stainless steel; CPM-D2. Conventional D2 has a long history of use in knives, and a derivative of it is used for some Japanese kitchen knives called SDK11 or sometimes SDL. This steel however, is a significant upgrade from conventional D2/SKD11 as the powder metallurgy process creates much finer and more evenly distributed carbides in the steel, resulting in twice the toughness at the same hardness and much improved fine edge stability (not to mention greater ease of grinding). D2 lacks any vanadium or tungsten carbides, and as a result is fully serviceable on conventional stones, despite being a fairly high wear resistant steel. This is a fairly thin suji, but owing to the very gradual taper in the first 2/3 of the blade, is quite stiff for its thickness.

Blade Dimensions

• Blade: 285mmx42mm CPM D2 (64-65 HRC) scotchbrite belt finish
• Neck: 18mmx20mm
• Handle: 130mm long, 22mmx24mm tapering to 18mmx21mm- Oil finished maple (some spalting)
• POB: 65mm from the hande
• Spine: 2.71mm at the neck, 2.4mm at 15.3cm, .71mm 1cm from the tip
• Grind: flat to convex, right hand bias
• Weight: 152g
• Relieved choil and spine
• Edge: .17mm@1mm, .3mm@2mm, .56mm@5mm, .88mm@10mm Measured at the midpoint.

Blade Special Features

A 285mm CPM-D2 Sujihiki

To learn more about CPM-D2 click here: https://knifesteelnerds.com/2020/08/31/how-to-heat-treat-d2-psf27-and-cpm-d2/