Watch this step-by-step video to see how to perform a die install on R811 Universal Die Head.br br R811 Universal Die Head uses universal dies from Reed, RIDGID®, Wheeler-Rex®, Berkley and some private brands. R811 fits Reed's 5301PD Power Drive and RIDGID® machine models 300, 535 and 1822. The R811 universal die head offers easy-to-adjust size selection with manual openclose operation, along with die lubrication slots. R811 die head does not include universal dies, order them separately. The R811 die head holds any NPT, NPSM, BSPT, or Bevel-type Reed Universal Dies.