Tired of scratchy wire ends on your jewelry projects? This wire rounder attachment makes finishing your pieces a breeze! Just pop it onto your battery operated bead reamer (sold separately) and you can quickly smooth out those sharp wire ends with the push of a button. It works great with silver-filled wires, German style wires, Artistic Wire, and other fine metal wires up to 20 gauge and smaller. Perfect for creating super smooth ear wires or finishing off wire-wrapped designs without any rough edges. The package includes different tip sizes to handle various wire gauges - the smallest for 20 gauge and smaller, medium for 16-18 gauge, and larger for 12-14 gauge wires. No more tedious hand-filing that takes forever! This little tool saves you time and gives your jewelry that professional, polished look. If you're serious about wire work, this attachment is pretty much essential gear for your jewelry-making toolkit.