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Tapping heads and holders connect taps to drilling and milling machines to create threads in holes. Tapping heads (also known as tap holders) mount to the spindle of a drill press or milling machine. Tapping adapters are quick-change fittings that connect to a compatible tooling chuck. The chuck can remain in place on a machine while the current adapter is changed out for another adapter to allow the chuck to hold different sizes of taps. Tapping head and holder accessories restore or enhance the function of tapping heads and holders.
