Aired: April 4, 2018 | Season: 5 | Episode: 4

Overview
Runtime: 42m
Directed by:
Written by:
Description
Edged-weapon mastery is put to the test right away as four bladesmiths must forge a functional friction folder. Without knowing how their blades will be tested, each smith must find the critical junction where skill meets resiliency to produce a folding knife versatile enough to handle any test imaginable. Ultimately, only two smiths push through to the final round where they must recreate a Japanese trident called the Jumonji Yari.