Indagator's Grinding Wheel ★★★

Taken all the way down to base materials, one Indagator's Grinding Wheel is 2 crafting steps deep and needs 3 intermediates — Paldao Lumber ×3, Zoisite ×3 and Rutilated Quartz ×2 — which resolve to 8 distinct raw materials totalling 56 units, plus 58 crystals.

That bill outweighs 12,997 of the 13,602 recipes tracked here and 1,392 of the 1,552 Carpenter ones, and 4,464 recipes nest deeper.

Only 10 of those crystals go into the final step; the other 48 are burned by the intermediates, so the real crystal cost is 29 Wind Cluster, 15 Fire Cluster and 14 Ice Cluster.

The chain crosses two disciplines — Carpenter to Lv 90 and Goldsmith to Lv 90 — so no single class can finish it unaided.

3 of the 8 raw materials come out of the ground, and 3 of them are time-gated: Paldao Log (2:00, 14:00), Raw Rutilated Quartz (6:00, 18:00) and 1 other. The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Rutilated Quartz has the widest use: 43 recipes call for it, spanning six of the eight crafting classes.