These cheap oil rigs are some of the best-valued rigs on the market. We source high-quality glass so while the price may be a cheap rig, the quality is not lacking at all. Plus, all these discount oil rigs come with our free shipping and top notch service. All our Dab Rigs Under $100 come with a nail and are ready to go right away for a nice cheap dab. No doubt our pieces are the cheapest oil rig when you factor in value, quality of service, and availability!