Machine tapers. Specification for extension adaptors with external 7/24 tapers for tools with Morse taper shanks.
STANDARD published on 30.9.1988
Designation standards: BS 1660-7:1988
Publication date standards: 30.9.1988
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: British technical standard
Category: Technical standards BS
Specifies the dimensions and tolerances for adaptors (collets) for sizes 30, 40, 45, 50, 55 and 60 and Morse taper sizes 1 to 5. Status: Confirmed