指节铜套

例句：

1. 1. The tool is made of stainless steel and has a precision fit for the joint.
   这把工具由不锈钢制成，对接头有精确的配合。
2. 2. The engineer used a special tool to remove the rusted metal from the joint.
   工程师使用一种特殊的工具来去除金属上的锈迹。
3. 3. The technician carefully fitted the tool into the joint, making sure it was secure.
   技术员仔细将工具插入到接合处，确保其牢固。