This is an extender / spacer for the JLC micro saw for making multiple - exactly parallel - cuts in one go for example rods of equal length! The tool can also be used to scribe a surface by simply pulling the blade and repeating the process to the desired depth in the plastic or resin.
The set contains 5 shims of varying widths (1.5mm, 0.5mm, 0.30mm, and two 1.0mm) and two fastening screws.
By JLC