One thing to take into consideration when looking at a previously owned knife is that the former owner may have loosened the pivot screw so they could " sling " the blade open , thus compromising the makers original " specs " for blade play 對(duì)購買二手刀來說,一個(gè)要考慮的因素是,前擁有者可能為了用“甩”法開合刀體而擰松刀軸螺絲,這會(huì)影響制刀者對(duì)該刀的設(shè)計(jì)初衷。