Black Dial Test Indicator Holder Bridgeport Mill MIlling Machine Go to amazon.com Related posts The 14 best dial indicator holder FeatureDial test indicator holder mill machineClamping diameter: 1-7/8"Length from clamping bracket to indicator: 4-1/2"Reach: 0-12" DiameterQuantity: 1 ; Weight: 7 oz *estimate only*