Noga NogaFlex Holder - Model: NF1022
Brand: NOGA

'Indicator Holder, Screw Type Knob, Snug Yes, Holes 6mm, 8mm, 3/8 In., Construction Steel, Finish Unfinished, Features Measuring Insert, Includes Rod, Arms and Top Fine Adjustment'

Most useful for centering holes on milling machines.
Test indicator holder arm with 8mm diameter x 40mm long stem.
Stem Length: 40 mm