Tool set for opening backs of large watches Diamond and Moissanite testers 2 it's so easy to focus

it's so easy to focus and to use

part of which will be light and part of which will be dark

Takes one rechargeable battery (battery and charger included)

Works on any stone

If you specifically need to test diamonds

Tool set for opening backs of large watches Diamond and Moissanite testers 2 it's so easy to focusSummary Opening kit for all sizes of screw back watch from 18mm diameter to 50mm diameter. It solves the problem of how to open larger (in addition to standard size) watch backs; how to open them when they are too stiff to open (with the opener) just by holding in your hands; and you get tweezers, a watchmaker's eyeglass and a good quality spring lug remover too all in a fitted case. case opener for screw back watches case holder box of attachments