
Carve any full block into eighths with the chisel, modded blocks included, then place and mix those eighths freely. Build vertical slabs, stairs, and anything else that fits a 2x2x2 grid, out of any block you can hold.
Shaders: chiselled blocks report the material they are made of, so block-ID driven shader effects such as Complementary's integrated PBR treat an octant of stone as stone rather than skipping it.
Create Aeronautics / Sable: chiselled blocks render correctly on assembled sub-levels.

Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as octachisel-1.0.0.jar — drop this file into the mods folder
- Download size: 258 KB
- Download link checked 10 Sept 2026 — working
These come from our own check of the pack file, not from the source page.