An application kit according to one embodiment is equipped with a cartridge provided with a sheet member, and an applicator that can be connected to the cartridge. The cartridge is provided with a bending portion for bending the sheet member, and a cartridge-side connector for detachably connecting to the applicator. The applicator is provided with an applicator body, an applicator-side connector provided to a bottom portion of the applicator body, a cap that is provided above the applicator body and is movable along the height direction of the applicator body, and an elastic member that extends along the height direction between the applicator body and the cap and applies to the cap an elastic force acting in a direction away from the bottom portion.一實施形態之施作套組具備：卡匣，其具備片材構件；及施作器，其能夠連結於卡匣。卡匣具備：彎曲部，其將片材構件彎曲；及卡匣側連接器，其可裝卸地與施作器連結。施作器具備：施作器本體；施作器側連接器，其設置於施作器本體之底部；蓋，其設置於施作器本體之上方，且能夠沿著施作器本體之高度方向移動；及彈性構件，其於施作器本體與蓋之間沿著高度方向延伸，且對蓋賦予作用於自底部離開之方向之彈性力。
