How to Modify Twist Drills to Make Them Safe for Use in Plastics and Brass

[cazclocker]

One of the most hazardous operations in the shop is drilling holes in plastic or brass, especially in the drill press. Here is a simple technique to prevent drills from grabbing when drilling soft materials.

Tom

[video=youtube_share;8Ri6poVpQM8]

Just found this thread on recommendation from another member here. I use the zero-rake trick on drill bits when drilling plastic, but I didn't realize it's useful for plastic too! Thanks!