Lee Collet 2-Die Neck Sizer Set 6mm RemingtonSet includes Collet Neck Sizer Die, Bullet Seating Die, Shellholder, Powder Measure, charge table and storage box. A collet in the sizing die squeezes the case neck against a precision mandrel for a perfect bullet fit with minimum bullet run out. Die Types Included: Collet Neck Sizer Die (with decapping unit) Bullet Seater Die Accessories: Shellholder Powder Dipper Load Data Sheet Plastic Container Notes: Collet neck sizer uses a collet to squeeze the