Bench Pin Saw Vise Genie All acrylic backing plates are

All acrylic backing plates are 3/8" thick with a 1/2" arbor hole

There is no need to break these wheels in

and does remove material from your burs so it is important to not dress your burs too frequently or when not needed

so that your stones

Attaches to the existing lampshade

Bench Pin Saw Vise Genie All acrylic backing plates areThe Bench Pin Saw Vise holds metal, wood, or plastic for easy sawing. A necessity for the jeweler's bench as well as for the hobbyist or craft person, this vise fits in standard jewelers' bench slot or clamps to the edge of a table. A powerful self adjusting spring with quick release holds non slip jaws steady to grip metal from 32 to 4 gauge.