Wiggler & Centre Finder 5pc Set - Tyzacktools

Wiggler Chuck/Holder: The main body that is mounted in the machine's spindle. The attachments push-fit into a collet in the body. Needle Point / Centre Finder: Used to align the spindle directly over a scribed line or center punch mark. The point is brought down close to the mark, and when the spindle is directly centered, the point will appear to stop "wiggling" or oscillating. Ball Contact (e.g., 0.25" dia): Used for locating edges or the center of existing holes. When run against an edge, the ball is pushed into alignment, and when it "kicks out," the center of the spindle is a distance equal to half the ball's diameter from the edge. Disc Contact / Edge Finder (e.g., 0.100" dia): Similar to the ball contact but with a flat disc, often used for more precise edge finding. Offset Indicator Holder / DTI Holder: An adapter to hold a Dial Test Indicator (DTI), allowing the user to sweep and check the concentricity of holes, mandrels, or the true alignment of a vise on the machine table.