|
UDC 621.9
IS0
I N TE R N AT! O N AL O R G AN 1 Z AT1 O N F O R STAN DAR D I ZAT! O N
IS0 RECOMMENDATION
R 241
TURNING AND PLANING TOOLS
SHANKS FOR
SECT ONS AND TOLERANCES
1st EDITION
December 1961
COPYRIGHT RESERVED
The copyright of IS0 Recommendations and IS0 Standards belongs to
IS0 Member Bodies. Reproduction of these documents, in any country,
may be authorized therefore only by the national standards organization
of that country, being a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national
standards organizations.
---------------------- Page: 1 ----------------------
BRIEF HISTORY
The IS0 Recommendation R 241, Shanks for Turning and Planing Tools. Sections and Tole-
rances, was drawn up by Technical Committe lSO/TC 29, Small Tools, the Secretariat of which is
held by the Association Française de Normalisation (AFNOR).
Work on this question by the Technical Committee began in 1947, taking into account the
studies which had been made by the former International Federation of the National Standardizing
Associations (ISA), and led, in 1958, to the adoption of a Draft IS0 Recommendation.
In September 1959, this Draft IS0 Recommendation (No. 307) was submitted to all the IS0
Member Bodies for enquiry. It was approved, subject to some editorial amendments, by the follow-
ing Member Bodies :
Austria Hungary Portugal
Belgium India Romania
Burma Italy Sweden
Czechoslovakia Mexico United Kingdom
France Netherlands U. S. A.
Germany Pakistan U. S. S. R.
Greece Poland
One Member Body opposed the approval of the Draft: Switzerland.
The Draft IS0 Recommendation was then submitted by correspondence to the IS0 Council,
which decided, in December 1961, to accept it as an IS0 RECOMMENDATION.
r'
-2-
---------------------- Page: 2 ----------------------
ISO/R 241 - 1961 (E)
IS0 Recommendation R 241 Decem ber 1961
SHANKS FOR TURNING AND PLANING TOOLS
SECTIONS AND TOLERANCES
INTRODUCTION
I. SCOPE
This IS0 Recommendation for sections and tolerances of shanks for turning and planing tools
provides for three types of sections:
1. Round sections,
2. Square sections,
3. Rectangular sections with ratios of height to width of respectively:
approximately 1.25,
approximately 1.6 and
approximately 2,
and comprises two tables, giving respectively
(1) the dimensions in millimetres. . Table 1.1,
(2) the corresponding dimensions in inches . Table 1.2.
II
...