The pinion return spring broke last night, not a good feeling while you are drilling a new ball for a customer. I've been searching on the net and can't find many suppliers. The piece is a round coiled spring that goes in the left side under the tension adjust cap. My press is a Rockwell 15-665 15" 6 speed 6" travel. The part nu is 402-04-331-5002. A place in Nebraska online can order but is 2-3 weeks out.Does any one know a good supplier? Thaks guys....I'm thinking a bungee cord wrapped around...... Al