19mm Ground Joint Reamer - Aluminum Handle - Griffin Glass Tools
This brass reamer is a 1-10 taper which has been machined to +/- 0.001” This means when you ream a fitting it should be a nice snug joint connection with little effort. This universal reamer size range is just smaller than a 10mm fitting on the small end and just wider than a 19mm fitting at the widest point. Griffin's individually sized joint forming tools have been very popular and have become trusted for their effectiveness and accuracy.
Brass is used instead of graphite for longevity and consistency of the formed joint shape after multiple uses.