The Ridgid 811A Optional Die Head is a professional threading tool designed for cutting right-handed BSPT threads on pipes and bolts. Featuring a Quick Opening (QO) manual release mechanism, this die head gives operators precise control over thread lengths, making it ideal for applications requiring specific threading specifications. Built for compatibility with 2in threading machines, the 811A die head offers versatile capacity ranging from 3-50mm (1/8 - 2in) for pipe work and 6-50mm (1/4 - 2in) for bolt threading. The universal die type ensures broad application across various threading tasks, while the oil-through head design maintains consistent lubrication during operation for improved thread quality and extended die life. At 5.9kg, this die head provides a robust yet manageable solution for plumbers, pipefitters and engineers working on commercial and industrial projects. The right-handed thread direction makes it suitable for standard threading applications across heating, plumb