39x JM31647H Retention Knobs CAT50 Pull Stud CAT 50

39x retention knobs for CAT50 tool holders, works with Matsuura Mam72 100H Horizontal Machining Center 2014

some are engraved:

JM31647H
S/N 02716-003437
30025/007

ALL ARE PRE-OWNED
looks like all or most support TSC or through spindle coolant