tap

Description
Large steel tap for forming a screw thread.
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Object detail

Department
Object
Production place
USA
Signature & date
stamping:side:"S.W.Card Mfg. Co/ Mansfield. Mass./ U.S.A." and "3 1//2 WHITWORTH"
Associated person
Measurement type, part and reading
Dimensions:0 - Whole:L 17.7cm (L 6 15/16")
Dimensions:0 - Whole:Dia 9cm (Dia 3 9/16")
Accession number
1979-025-300

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