What are the tools that are used to chase internal and external threads?

When performing thread remediation, the correct tool must be selected for the job. In the case of internal thread remediation, specially sized chasing tools or taps; or Serra-Tools? can be used. New Vista’s Serra-Tools? are particularly advantageous because these tools are GO gages with serrations cut into the threads to provide a cleaned-out and gaged thread in a single pass. Each tool is designed to meet a specific remediation objective, so contact your New Vista applications engineer to determine which tool is the best fit for your application.

When remediating external threads, two methods are predominant: remediation with dies, and remediation with thread rolls. The most common difficulties with external threads are plating and coating buildups, and dinging. While plating / coating buildups are most often remediated with dies, and dings usually remediated with thread rolls, each application is special and should be evaluated carefully to determine the best remediation process for the job.

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