Hammers Mod 1.8, 1.7.10 adds in a hammer for each type of tool material. These hammers are basically creative mode in a tool for survival. You can break blocks basically instantly but you won’t receive any drops from blocks you break. So, this can be really useful for breaking down mountains really quickly.
You must first craft a Grim Item Core from Grim3212 Core
After you have the core the rest is self explanatory.
How to install Hammers Mod 1.8, 1.7.10
Download Links for Hammers Mod 1.8, 1.7.10
For Minecraft 1.6.2
For Minecraft 1.7.2
For Minecraft 1.7.10
For Minecraft 1.8.0