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Durston 戒指拉伸器心轴(大号)是一款耐用紧凑的工具,可高效地扩大和调整戒指尺寸,适用外径范围为 21 毫米至 24 毫米,总长度为 92 毫米。这款便携式心轴非常适合忙碌的珠宝商,可以牢固地固定在虎钳、夹具上,或与车床/抛光机配合使用。操作时,将戒指套在心轴末端,并使用随附的内六角扳手拧紧中心螺栓,扩大花键以进行可控拉伸。其简洁坚固的设计可确保精确调整普通戒指尺寸或贵金属和有色金属的商业尺寸,并具有便捷的存储和运输方式。
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