Historical
ISO 15488:1996
Collets with 8 degree setting angle for tool shanks - Collets, nuts and fitting dimensions
Specifies the dimensions, materials and manufacturing requirements, and designation of collets for tools with parallel shanks and their corresponding holders and nuts. Form A applies to milling and any other application where a hard collet bore is required. Form B applies for general purposes.
International Organization for Standardization [iso]