Alternative Name(s): Thread Cutting Bit

Tap made circa 1960s-1980s. It was used for cutting internal metal threads. It was found in Area E3 at Adolph Bruhn & Son's Wood Turners Shop, 283 Coventry Street, South Melbourne. The business was established by Adolph Bruhn circa 1893 in Little Collins Street, Melbourne. Upon his death in 1919 it was then operated by Adolph's son Sophus Christopher Bruhn. Upon Sophus's death in 1959 his son Sophus Walter Bruhn took over the business. In 1970 Sophus reduced the scale of the business and relocated to South Melbourne. The business closed upon Sophus's death in January 1990.

Adolph Bruhn migrated to Australia from Germany in 1884, at the age of 29. He arrived in Adelaide where he lived for 10 months before moving to Victoria, where he settled, established his business, married and had five children.

Physical Description

Metal tool used for forming threads inside a wooden dowel (i.e. internal threads). A cylinder of heavy metal with four rows of vertical serrated metal teeth is at the top of the cylinder. Each row has nineteen teeth. The cylinder taper slightly towards the top.

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