Indexing Drill Jig

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An indexing jig facilitates drilling uniformly spaced holes around a circle; in this scenario, four evenly placed holes are to be created on the workpiece's edge. The workpiece features a pre-machined bore, and its positioning is ensured by a C-washer and a nut. A drill bush is inserted into the bush plate. Drilling initiates with the drill passing through the bush, and subsequent holes are achieved by rotating the hand wheel to index the workpiece using an index plate and indexing device.