QS157D1 QSP Vault Glyde Lock Copper FoilThe QS157D1 Vault is a mid sized folder built around Sandvik's 14C28N stainless steel, a proven EDC workhorse that holds an edge well and resists corrosion in European climates. The 3. 25" drop point blade balances utility and discretion, while the copper foil G10 handle provides genuine grip texture and visual character without the maintenance demands of natural materials. At 4. 25" closed, it's pocket friendly for daily carry, backed by a solid