About

About Triangle Tool Founded in 1968 and based in Milwaukee, Wisconsin, Triangle Tool LLC is a premier, full-service provider of custom injection molds, large-format machining, and specialty tooling solutions. From multi-cavity molds and stack tooling to heavy machining and fluid-end components, TT specializes in large, tight-tolerance, highly detailed work others can’t take on. Our team provides full-service support, design, build, machining, assembly, and sampling to ensure every project is delivered with the quality and reliability our customers expect.