ISO 236-1:1976

Hand reamers

Publication date:   Nov 1, 1976

General information

90.60 Close of review   Mar 5, 2023


ISO/TC 29/SC 9 Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces

International Standard

25.100.30   Drills, countersinks, reamers



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This part of ISO 236 specifies the dimensions of hand reamers. It comprises three tables giving respectively the preferred sizes with corresponding dimensions in millimetres and in inches, the corresponding sizes, in millimetres and in inches, set out as functions of diameter steps. Provision is also made for tolerances on lengths, cutting diameters and the diameter of parallel shanks.

Life cycle


ISO 236-1:1976
90.60 Close of review
Mar 5, 2023