P&M Refrigeration Copper Tube Expander Kit with 7 Expander Heads - Part # I100Heavy Duty Refrigeration Copper Tube Expander Kit. Part No. I100. Heavy duty copper tube expanding, swaging tool. Includes expander tool and 6 tube expander heads and an internal external reamer in a handy carry case. Head sizes 3 8", 1 2", 5 8", 3 4" 7 8", 1" & 1 1 8". Don't pay $800 $1100 for similar Rothenberger or Ridgid sets. This is a high quality product which will provide years of service. Ideal for the refrigeration engineer in the workshop