Specifies the material, proportions, dimensions and test requirements of double-ended, open-jawed spanners which are intended for use on the square nuts on outdoor equipment such as that used by the Post Office and similar authorities.

Original price was: $160.02.$80.00Current price is: $80.00.
Specification for square nut spanners (Post Office type)
BSI Group , 02/17/1955
Pages: 10
