The 651-S from Panavise is an Adjusting Knuckle with 1/4-20 Stud that is full adjustability with knob and set-screw options and includes lock ring.
- Full adjustability with knob and set-screw options and lockring included
- Overall knuckle height approximately 2.5" (63.5mm)
- Base drilled and tapped 1/4-20
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