USED Lyndex HSK63A-ER20-5.00 ER20 Type Collet Chuck w/ ER20 6MM Collet
This is not your average holder, made by Lyndex-Nikkon, it is their HSK63A-ER20-5.00 ER20 Collet Chuck! Coolant thru is available with optional coolant tube & T.I.R. is. 0001" run out at cavity bore.