Anyone that was worked with wood probably has experience cracking the wood at one time when a nail is hammered in. This can really ruin your project and your day. I will show you a little trick with the nail that can stop the wood from cracking.
Step 1: Blunt the Nail Tip
Tap the pointed end of the nail with your hammer to flatten the tip a bit. Now you no longer have a sharp tip that will act as a chisel and causes the wood to split. The blunt tip cuts the fibers of the wood and prevents the splitting crack to start. Try it and stop the Crack!