The drill is a tool used because it gets a lock open fast and it seems to work on almost every lock. When someone comes into contact with high security door locks that have anti-drill protection, they’ll find that their tried and true method of drilling won’t help them get past those locks. The main points that need protection are the shear line and set screws. Look for hardened steel ball-bearings that protect both areas. There are also models that have rotating anti-drill plates that protect the shear line from drilling. A locksmith can help you make sure these points are addressed.