Fowler,Indi-All Test Indicator Accessory, 52-566-853

Fowler's Indi-all indicator holder finds the center position without removing the tool from the machine. It mounts with a single set screw directly on the machine quill, bypassing the working tool. Use for milling machines, jigborers and Bridgeport mills (J-head).
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• Accepts all indicators with 5⁄32" shank or dovetail. Reach from 0-12" diameter..
• Provides readings accurately and quickly without disturbing the workpiece..
• Arm length from clamp 4-1⁄2".