These higonokamis are universally popular as a do-everything penknife. The Japanese-equivalent to the Swiss Army Knife in terms of popularity, they were originally used to sharpen pencils but can be used in almost any crafting task and for household jobs, particularly box opening. 

Handmade brass: 7.5cm blade; 17.5cm unfolded length

Group picture, top left to bottom right: Handmade brass, regular brass, black mono and mini brass.