16/64"
0.2188 - 0.2500 inches range
5.56 - 6.35 mm range
(NOTE: Small Collet Chuck Extension Rod is required to be able to use this part.)
Replacement small collet is used to hold small valves that don't fit in the standard Valve Refacer Chuck. This part is available in case you have damaged or lost your original 6 mm Small Collet from your kit. A full kit can be purchasedBy Clicking Here