What you need
| Qty | Item | How it is used |
|---|---|---|
| 1 | Sharp Flint Flake | Used up |
| 1 | any hammerstone or any mallet or any knappingtool | Tool, kept (may wear) |
Knap Stone Blade is a knapping crafting recipe in Project Zomboid Build 42. It makes Stone Blade x1. It needs Knapping level 1.
| Qty | Item | How it is used |
|---|---|---|
| 1 | Sharp Flint Flake | Used up |
| 1 | any hammerstone or any mallet or any knappingtool | Tool, kept (may wear) |
| Qty | Makes |
|---|---|
| 1 | Stone Blade |
Recipes that make the ingredients:
What you can make next with the result:
Use the Knap Stone Blade recipe (Knapping category). You need Sharp Flint Flake and these tools: any hammerstone or any mallet or any knappingtool.
It needs Knapping level 1.
You must learn this recipe before it shows in the crafting menu. It is learned automatically at Knapping 3. Reading Magazine: Wilderness Survival, Magazine: Tool Use of Early Man teaches it. You can also research it from Long Stone Blade, Sharp Flint Flake, Flint Saw, Spear with Stone Head, Spear with Long Stone Head, Stone Knife, Long Stone Knife.
It gives 20 XP in Knapping per craft.
Figures on this page are read from the Build 42 game files (42.22, November 2026). Chances are relative weights inside each loot table, not exact drop rates. Your game is the final word: if it disagrees with us, tell us and we will fix the page.