Is there any way to add new types of holes to the holes feature? There is
one very important type missing, a stepped hole. Basically it is a
counterbored countersunk hole, or in other words a counterbored hole that
the counter bore is not flat at the bottom. There is also a version that the
smaller diameter is tapped, known as a jack hole, that is used to raise a
tool steel component off of dowel pins.