süa 300 amp stick welding electrode holder af3 style süa high quality electrode holder af-3 style. product features: maximum amperage: 300 a. cable size: up to 2/0. holds electrodes up to 1/4". description; construted with heavy duty nylon body. high conductivity jaws and cable connectors. high strenght coiled spring for a maximun grip of the electrode. includes: cable connector and allen wrench.