BS 1983-3 87th Edition, May 29, 1987
Chucks for Machine Tools and Portable Power Tools - Part 3: Dimensions of Collet Pads for Base Jaws of Power Operated Workholding Chucks
Includes all amendments and changes through Reaffirmation Notice , October 1, 2012
Published By:British Standards Institution (BSI)
Dimensions, accuracy requirements. Two classes of accuracy, high precision and normal.