SAMURAI Knives/knife Blades

The family uses different profile angles (the pitch/lean of the blade) and cutting bevel angles (the sharpness of the edge wedge) to handle progressively thicker, more stubborn materials.

Key Engineering Principles behind this Lineup

Understanding these specs helps maximize yield and cut quality:

· The Profile Progression (39° ➔ 26° ➔ 20° ➔ 16°): As materials get thicker, the profile angle decreases. A lower profile angle (like 16°) gives the blade a longer, more gradual piercing gradient. This reduces the material resistance and drag when cutting deep into a stack.

· The 39° Cutting Bevel Exception: Note that the 16°, 26°, and 39° blades all share a 39° wedge angle. This specific angle provides an optimal balance between razor sharpness and edge retention, preventing the steel from chipping against hard substrates or vacuum bed underlays.

· Single Sided vs. Double Edge:

o Single Sided creates a perfectly square, 90-degree cut on the "good" part side while pushing the compression angle entirely into the waste matrix.

o Double Sided divides the cutting pressure equally on both sides, which is crucial for preventing buckling or tearing in rigid fluted materials like Coroplast (corrugated plastic)