3M 26046, PPS Series 2.0 Adapter, Type S15, 3/8 Male, 19 Thread BSP, 7100135334 
Insize 2385-3, CENTERING INDICATOR, 6928640321153
$239.84
Provides quick and accurate centering in boring and milling set-up.
Used for Reference when setting up part
Comes with tips shown
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