JEGS Wire & Terminal Gauge makes easy work out of what often times is a tough task. Assists you in determining 8 ga. to 4/0 wire, 8 ga. to 4/0 terminal barrel and #6 to 5/8" ring terminal sizes. Also includes a handy 0 to 7-3/8" (in 1/8" graduations) and 0 to 185mm (in 5mm graduations) ruler for determining wire length. Durable and compact plastic constructed unit stores easily in the tool box, trailer or glove compartment. . Available individually or in a kit.