Where used, the connection between blade and handle. This can be solid (Fig 1) or hollow (Fig 2) :
Fig 1: solid bolster: forged, moulded or welded: it provide good balance between the blade and the handle.
Fig 2: hollow bolster: constituted by two hollowed parts welded or fixed with a rivet, the joint almost invisible thanks to the polishing.
Most often used instead of a bolster and made of one hollow piece, positioned on the handle to receive blade. It is often used as a design feature.
An extension of the blade and fixed into the handle. It can have different shapes.
Can be assembled and fixed by several ways:
• Hot (insertion) or cold (fitted)
• Traditionally, by fitted wooden or plastic plates
• Injected, fixed by using crossed rivets
• By direct moulding onto the tang, with or without « deco » rivets
Hard or flexible, narrow or wide, plain or serrated edge, made from stainless steel or carbon steel, cut out or forged, with or without bolster… The Choice of the kind of blade will depend on what the knife is designed for. The production process may be summarised as follows:
Fully forged blade, bolster and tang:
Cut out blade, moulded aluminium bolster
Cut out blade
Blade and tang cut out, then welded
Reversed flat blade, forged bolster