This rack features a 7-1/2" bar area for easy accessibility to your favorite pliers. In addition, there are 2 tray extensions, each with 2 round depressions that can be used for holding small parts or bits of solder. Any small container with a 1-1/2" circumference will also fit here.   There are ten 1" deep openings as wide as a pencil, that can hold short solder wires or small jewelers screwdrivers. The additional 9 drilled holes can hold burs. The rack measures 12-1/2"L x 4-1/2"H x 45/16"W.