"Made
from polished and heat-treated steel, the RCBS Carbide 3-Die Set has a
Sizer Die with Decapping Unit, Expander Die for expanding and belling
the case mouth and a Seater Die for seating and crimping the bullet
(Straight wall cases will roll crimp, unless the description indicates
it has a taper crimp). No sizing lube is needed with these carbide
dies. Shellholder sold separately. Comes with green plastic storage case
and Lifetime Guarantee from RCBS"