Lee's collet neck sizer die precisely squeezes case necks against a mandrel for minimal runout and superior bullet fit. No lubrication required.
The Lee Collet Neck Sizer Die represents a straightforward approach to precision reloading. Rather than relying on traditional sizing methods, this die uses a collet mechanism that gently squeezes your case neck against a precision mandrel.
Collet Sizing Technology
For shooters serious about accuracy, neck runout matters. This die eliminates the variables that traditional sizing introduces, giving you repeatable, consistent results with every round. Whether you're loading for competition or precision hunting, the Lee Collet Neck Sizer Die is a proven tool for tighter groups.