Four screwing tap sets: 1/2", 5/8", 3/4", and 1"; for nut fastener manufacture

1850-1857 in Manchester urban district
Joseph Whitworth and Company Limited

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Four Sets of screwing taps, sizes 1/2, 5/8', 3/4', and 1'; four taps to each set.'
Science Museum Group
© The Board of Trustees of the Science Museum

Four Sets of screwing taps, sizes 1/2", 5/8", 3/4", and 1"; four taps to each set.


Hand and Machine Tools
Object Number:
1857-8 Pt2
overall: 8.2677 x 15.748 x 9.1732 in.; 210 x 400 x 233 mm
screwing tackle
Joseph Whitworth and Co.

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