By adding both a premium Carbide Expander Assembly and a Neck Sizing Die Lyman has created two die sets in one. Neck sizing eliminates overworking the brass extending case life. Set includes: - Deluxe Carbide Expander Assembly with a free floating carbide sizing button which smooths neck expansion by moving the button up the decapping rod to better use the press' leverage. It eliminates the need for inside neck lube. - Neck Sizing Die which allows the case to retain the precise chamber dimensions of the individual rifle while avoiding excessive working of the brass. - Standard Full Length Sizing Die for taking brass down to factory dimensions. - Standard Bullet Seating Die - Weight: 1.8 lbs