Blade is hand forged aogami #1 with a non-stainless suminagashi cladding. Handle is octagonal cherry with sections of natural cherry bark remaining sealed with an urushi lacquer coating.

The Hado ‘Sumi B1D’ aogami 1 series double bevel knives are forged at Tanaka Hamono, led by Yoshikazu Tanaka a top level ‘Dentokougeshi’ blacksmith in Sakai City, Osaka. Tanaka Hamono's treatment of aogami 1 is very highly regarded, he manages to incorporate both toughness, ease of sharpening with excellent edge formation with long edge life. They are ground with flat even kireba and a polished spine and heel and will be easy to follow up thinning and are a delight to maintain.