Tungsten Electrodes. Tungsten electrodes. Tungsten electrode, polymide insulated, 0.5mm with 10:1 tapered tip, 1mm exposure. pk/2. Product code: 01-931-06 Tungsten electrode, as above, but 2mm exposure. pk/2 Product code: 01-932-06 Tungsten electrode, as above, but 3mm exposure. pk/2 Product code: 01-933-06Tungsten electrode, as above, but 4mm exposure. pk/2 Product code: 01-934-06 Tungsten electrode, as above, but 5mm exposure. pk/2 Product code: 01-935-06 Special ElectrodesIf our standard electrodes do not meet your requirements, we maybe able to produce special designs.Contact us for more info