BS 4656-15 76th Edition, April 30, 1976
Specification for Accuracy of Machine Tools and Methods of Test - Part 15: Drilling Machines, Turret and Single Spindle Co-Ordinate Types
Includes all amendments and changes through Reaffirmation Notice , October 1, 2012
Published By:British Standards Institution (BSI)
Accuracy requirements and geometrical tests with reference to BS 3800. Relates to machines in general use and of normal precision. Does not apply to testing the running of the machine (vibrations, abnormal noises, stick-slip motion of components, etc.) or to machine characteristics such as feeds, speeds, etc.