The X-Ray Mod, as the name says it’s a tool that makes selected blocks transparent letting you see what you want. You can use it to find needed materials, check out whats wrong with your redstone circuit 
and more. This mod is made by crazyb and the original mod thread can be found here. Please visit the original mod thread and support the modder.
To use X-Ray:
Press the letter X for X-Ray, C and V
Installer Requirements:
Windows PC – Currently only for Windows
.NET Framework 4.o
Instructions:
(Before installing any Mods to your minecraft make sure to close it first)
1) Download and Run Installer
2) Click on Install Mod
Download Here . exe
Download Here . zip
X-RAY DOES NOT WORK WITH ANY FORGE MODS, IT CAN BE USED WITH NO ISSUES ON A CLEAN MINECRAFT AND SHOULD BE RE-INSTALLED EVERYTIME AFTER INSTALLING ADDITIONAL MODS. THIS IS A FRIENDLY WARNING
