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3/8 PREM EXPANDER HEAD Precise swaging on the job Re-round deformed tubes and fittings Salvage shorts and scrap to make couplings Handles, tapered expanding pin, and other moving surfaces heat treated for durability Use on 0.063" wall soft copper and aluminum to 1-5/8" O.D. (anneal hard copper prior to use) Use on 0.047" wall soft steel to 7/8" O.D. Kit includes six expander heads; three optional sizes sold separately
