立式拉床用内拉刀的拉刀和尾端的标称柄尺寸范围，以及拉刀座中拉刀夹头的定位尺寸。提供拉块顶部和压板表面之间的恒定尺寸。特别适用于拉削刀具的自动搬运。交叉引用:BS 4500BS 4656

Range of nominal shank dimensions for pull and tail ends of internal broaches for use on broaching machines, vertical type, and dimensions for locating the pull chuck in the pull block. Gives constant dimensions between the top of the pull block and the platen surface. Particularly applies to automatic handling of broaching tools.Cross References:BS 4500BS 4656