BS ISO 2238-2018 pdf free download.Machine bridge reamers
This document specifies the dimensions of machine bridge reamers. It gives, for a series of diameter ranges, d 1 , from 6 mm to 50,8 mm, the values, in millimetres, for the following dimensions of these tools:
— overall length, l 3 ;
— total cutting edge length, l 2 ;
— tapered cutting edge length, l 1 .
Unless otherwise stated, these reamers are right-hand cutting.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 296, Machine tools — Self-holding tapers for tool shanks
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://w w w.electropedia.org/
4 Dimensions
4.1 General
The Morse taper shanks shall be in accordance with ISO 296.
All dimensions and tolerances are given in millimetres.
4.2 Dimensions of machine bridge reamers
The dimensions of machine bridge reamers shall be in accordance with the indications given in Figure 1 and Table 1.BS ISO 2238 pdf download.