A graduated button on the thread clamp and a finger guard on the presser foot to make operation easy.

为方便操作，配置了有刻度的夹线按钮，压脚上装了为安全专设的挡指架。

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Etymology can only ask why a small cuplike guard used in sewing is called a thimble, though it is put on the third finger.

词源学只能问，为什么缝纫时使用的一个小杯状装置被称为顶针，但它却是在中指上使用的。

youdao

Etymology can only ask why a small cuplike guard used in sewing is called a thimble, though it is put on the third finger.

词源学只能问，为什么缝纫时使用的一个小杯状装置被称为顶针，但它却是在中指上使用的。

youdao