Sheath with holes for treaded inserts

This version of sheath holds my chef knifes of up to 8 3/8 inches (216 mm) blade length.

Requires M4x8x6 thread inserts, M4 bolts (2 of each per case) and a soldering iron for the assembly.

The distance between the holes for the inserts is 50 mm on center. 

Assembly:

1. Print one or more case and an optional stand
2. Sink the inserts into preset holes by heating them with a soldering iron
3. Attach sheath to a surface or the stand with M4 bolts of required length (use 12mm for the stand)