shank with tang and woodruff keyseat
coat style uniform with shank button to hem
shank with driving slot
shank with driving square
shank with special flat
shank with threads for draw bar
shank with whistle notch
shank with woodruff keyseat
straight shank keyway milling cutter
straight shank keyway mills
taper shank keyway milling cutter
taper shank with threads for draw bar
act independently and with the initiative in one's own hands
catch up with and surpass advanced world level