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

Made:
1850-1857 in Manchester urban district
maker:
Joseph Whitworth and Company Limited
Four Sets of screwing taps, sizes 1/2, 5/8', 3/4', and 1'; four taps to each set.'

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

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.

Details

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