Hello Alway FLOoRed.
The Stud Welder I got from Harbor Freight. About 5 years ago it was around $75. Now you can buy the same thing with a Dent Puller
The Dent Puller was around $30. The locking tab for the studs I always have to tap in and can create the dent again. I welded a pair of vice grips and I think it works better. I have also my dent puller to pull bearings, and one time I grabbed on to a lug nut stud to pull an axle. Really a versatile tool.