Zen-Wu Z-1T Straight Edge

The titanium alloy version of our Z-1 straight edge.

Why titanium: steel is heavy and rusts; aluminum is light but wears down at the working edges over years. Titanium avoids both problems. It also expands less with temperature than aluminum (about a third as much), so the straight edge holds its reference more reliably across a workshop that runs cold in winter and warm in summer.

Titanium body, machined through three stages of heat treatment to relieve stress at each step: raw material, rough machining, and finishing.

Straightness tolerance: 0.007mm (less than 0.3 thou). Surface finish: RA=0.06μm.

Two working sides: one with a relief notch for checking plane soles where the blade protrudes through the mouth, the other for general flat-surface and alignment checks.

Comes with a hand-stitched leather case.