Spur Gear
A chisel cuts one Spur Gear from three iron ingots, or two Spur Gears from a single Cast Iron Ingot - the cast route costs a sixth as much metal for the same tool. It is the drive gear every forming-shop machine seats one of - the Rolling Mill, the Crop Shear, both fastener benches - and it is also what a Transmission Housing is raised in place from, two gears and six iron ingots per housing.

Made by
| any Chisel (tool, not consumed) | ||
| Iron ingot | Iron ingot | Iron ingot |
| Spur Gear | ||
Needs: 3 Iron ingot, a Chisel (kept); makes 1 Spur Gear
| any Chisel (tool, not consumed) | ||
| Cast Iron Ingot | ||
| Spur Gear x 2 | ||
Needs: 1 Cast Iron Ingot, a Chisel (kept); makes 2 Spur Gear
Amounts are the mod's defaults; the recipe-cost level changes them (see recipe cost levels).