GRS 004-401 Brass Channel Practice Ring-Sold by the Piece Dapping Tools A 3" file will measure

A 3" file will measure longer overall when accounting for the full body length

This round solitaire head is designed to hold a 5mm center stone in a classic 4-prong configuration

Functions as the 1st-stage filter in the CollectAll and Solder Pure units

Digital controls with programmable forward and reverse rotation

Easy-to-follow index for quick reference at the bench

GRS 004-401 Brass Channel Practice Ring-Sold by the Piece Dapping Tools A 3" file will measureThe GRS 004 401 Brass Channel Practice Ring is designed for jewelers and engravers developing their stonesetting skills. This single piece brass practice ring features a channel sized to fit 3mm square stones, making it an ideal training tool for practicing channel setting techniques before working on finished pieces. Features Channel sized to fit 3mm square stones Brass construction for consistent practice use Sold individually by the piece