# Drill heads - Stage 3 (technology)

internal name `drill-head-mk03` · tier 7 (Production science pack, [tier 7](https://factorio.kalzumeus.com/tier/7.md))
HTML page: https://factorio.kalzumeus.com/tech/drill-head-mk03/

## Cost

1400 units of (1 × [Production science pack](https://factorio.kalzumeus.com/item/production-science-pack.md), 2 × [pY science pack 3](https://factorio.kalzumeus.com/item/py-science-pack-3.md), 3 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 6 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 10 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 20 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 30 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md), 6 × [Military science pack](https://factorio.kalzumeus.com/item/military-science-pack.md)), 300 s each.

## Requires (2)

- [Drill heads - Stage 2](https://factorio.kalzumeus.com/tech/drill-head-mk02.md)
- [Super alloy](https://factorio.kalzumeus.com/tech/super-alloy.md)

## Leads to (1)

- [Nexelit processing - Stage 3](https://factorio.kalzumeus.com/tech/nexelit-mk03.md)

## Unlocks (2 recipes)

### Drill head (`hotair-casting-drill-heads`)

- 10 s · tier 7 · productivity modules allowed
- Ingredients: 50 × [Molten stainless steel](https://factorio.kalzumeus.com/fluid/molten-stainless-steel.md), 50 × [Molten titanium](https://factorio.kalzumeus.com/fluid/molten-titanium.md), 50 × [Molten chromium](https://factorio.kalzumeus.com/fluid/molten-chromium.md), 5 × [Advanced casting](https://factorio.kalzumeus.com/item/mold.md), 50 × [Hot air](https://factorio.kalzumeus.com/fluid/hot-air.md)
- Results: 40 × [Drill head](https://factorio.kalzumeus.com/item/drill-head.md)
- Made in: Casting unit MK 01, Casting unit MK 01 (Legacy), Casting unit MK 02, Casting unit MK 02 (Legacy), Casting unit MK 03, Casting unit MK 03 (Legacy), Casting unit MK 04, Casting unit MK 04 (Legacy)
- Unlocked by: [Drill heads - Stage 3](https://factorio.kalzumeus.com/tech/drill-head-mk03.md)

### Mega drill head (`mega-drill-head`)

- 6 s · tier 7
- Ingredients: 10 × [Super alloy](https://factorio.kalzumeus.com/item/super-alloy.md), 10 × [Aluminium plate](https://factorio.kalzumeus.com/item/aluminium-plate.md), 50 × [Helium](https://factorio.kalzumeus.com/fluid/helium.md), 3 × [Industrial diamond](https://factorio.kalzumeus.com/item/diamond.md), 5 × [Boron carbide](https://factorio.kalzumeus.com/item/boron-carbide.md)
- Results: 3 × [Mega drill head](https://factorio.kalzumeus.com/item/mega-drill-head.md)
- Made in: Burner assembling machine MK 01, Burner assembling machine MK 02, Burner assembling machine MK 03, Automated factory MK 01, Automated factory MK 02, Automated factory MK 03, Automated factory MK 04
- Unlocked by: [Drill heads - Stage 3](https://factorio.kalzumeus.com/tech/drill-head-mk03.md)