Tooling design can be critical to achieving commercialization goals. Tool design has a direct impact on product cosmetics, cost and scalability. Sequential injection molding offers both cosmetic and throughput benefits, but in its traditional form has required a bulky mold and use of larger tonnage machines to accommodate the external hydraulic support system. Forefront Medical Technology, a specialty contract manufacturer with a focus in disposable diagnostic, drug delivery systems and medical device systems, has patented a streamlined sequential tooling design which utilizes a mechanical function inside the tool to eliminate the need for an external hydraulic system. The end result is a tool that easily fits in standard machines of the same tonnage as conventional injection molding tool, but is 50 percent faster than a conventional tool. This whitepaper looks at tool's advantages and Forefront's product development process.