There are several types of broaching methods. Today, I am interested in a certain type and that is spline cutting. This method is something I have always looked over but have always noticed. Without spline cutting, however we would not have any gears. Gears make the world go round, literally. Gears can be found in our cars, any mechanical machine and various other places. There are several ways broaching makes spline cutting possible. Mill machines and lathes are both capable of spline cuts. This cutting method can result in making a male spline or female spline. To add, there are several different ways to get the results of this broaching process, those types are as follows: parallel key spline, involute spline, crowned splines, serrations, helical splines and ball splines.