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ISO 521:1975
New product
ISO 521:1975 Machine chucking reamers with parallel shanks or Morse taper shanks
standard by International Organization for Standardization, 09/01/1975
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Full Description
Lays down only metric dimensions. For each type of reamer mentioned above ISO 521 gives two tables, one showing preferred sizes with corresponding dimensions and the other, a general table set out as functions of diameter steps. Provision is also made for tolerances on length, cutting diameters and the diameters of parallel shank.