主要用于二孔或四孔的平扣縫釘，若加附具，可縫釘帶柄及其他紐扣，適用于輕薄中厚面料的釘扣。
防止脫線機能設為標準設備（ON/OFF），使縫制效果更結實，更完美。只需要調節操作桿就可以簡單切換コ和×釘扣功能。
Mainly using for 2 or 4 holes button attaching,if matched with other device,could also adopt for other buttons,for light and medium materials.
Off-line preventing machine could be done as typical sets（ON/OFF）,which make the seaming more perfect.Only adjust operating rod,that could switch simply and × button attching.
