1.Describes both geometrical and practical tests on general purpose and normal accuracy bench drilling machines, and gives the corresponding permissible deviations with reference to IS : 2063-1962 'Code for testing machine tools'.
1.1 It deals only with the verification of accuracy and applies neither to the testing of the running of the machine (vibrations, abnormal noises, stick-slip motion of components, etc) nor to the machine characteristics (speeds, feeds, etc) which shall generally be checked before testing the accuracy.
IS 2426-1985 history
1986IS 2426-1985 Benchtop drilling machine test chart