This set can be used to thread wires, re-thread stripped threads on screws, earring backs, and for watch repair parts as well. The screwplate (die) is used for threading wire or making your own screws, while the individual taps are used with a pin-vise. Constructed from high-carbon steel for added life and durability. It is highly recommended to always use cutting fluid while using this product. To use, turn a few threads and reverse slightly to remove the metals that have been cut. The proper use will ensure the taps and die-plate to last longer. Safety First: Always wear safety glasses. Intended for adult use only. This kit also includes a wooden organizer box for convenient storage.

This set includes a total of 14 different in the following sizes: 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, and 2.0 mm.