Lee steel die sets have features identical to the Lee carbide 3-Die set except the case must be lubricated for sizing. Sizer die, powder through expander die, bullet seater die, shellholder, powder measure, load chart and storage case included. Bullet seater die features and adjustable taper to roll crimp. Specifications: - cartridge: .458 Winchester Magnum - number of dies: 3 - die type: sizer, powder through expander, bullet seater - threads: 7/8 inch -14 - shellholder included: yes - storage box included: yes