Length overall: 7.87 (200 mm) Blade length: 3.31 (84 mm) Blade steel: CPM S30V Cutting edge: 3.23 (82 mm) Hole diameter: .187 (5 mm) Blade thickness: .187 (5 mm) Handle material: Ironwood Finnish knifemaker Pekka Tuominen once said ,Every puukko is a knife, but every knife is not a puukko.” A historically traditional Finnish fixed blade, the Puukko was developed for life in forested, outdoor environments where woodworking, hunting and fishing are daily chores. Puukko blades have a single curving cutting edge and a flat level spine with a rounded wood handle. The level blade spine and lack of choil, allow positioning the thumb directly on the spine to concentrate force and leverage forward and downward where it’s needed most when cutting. Used for cutting as opposed to piercing or stabbing, Puukkos have no cross-guard or expanded pommel to block the hand from the blade.This feature gives the knife its sleek and balanced appearance. Puukko sheaths are considered an equal component to the knife, designed to protect the blade and its’ owner. The Spyderco/Tuominen Puukko carries tip-down in a fitted, black leather belt sheath which pivots with the position of the body, whether standing or sitting. Made of Arizonian Ironwood, the handle is rounded ergonomically with a large radius at the top near the spine that tapers into a teardrop shape, becoming narrower at the bottom so the blade can be orientated in the hand, by feel.Where the handle and blade meet is a subtle ricasso which segues into a PlainEdge CPM-S30V Scandinavian ground blade. In true Spyderco form, a small round blade hole proclaims the fixed blade to be a Spyderco knife. The Spyderco/Tuominen Puukko successfully blends together equal parts artistic expression, traditional tool with modern blade steel and high tech cutting features.