AUTO IMMUNITY, AXIS, BURNT BRONZEBlade Edge Plain Cobalt Black Blade Color Blade Style Plain Wharncliffe Handle Material 6061 T6 Aluminum (Burnt Bronze) The initial request for knives like this came from federal employees who are restricted from carrying a blade over 2. 5* in most federal buildings. Many jurisdictions have blade length restrictions on both manual and auto folders. Anyone looking for a small, easy to conceal folder or auto that is effective for both daily utility and