I know nothing about working with metal.
I need to drill 2 - 1/2" holes in 3/8" steel on my tractor to mount my new seatbelt. I have a mismatch of drill bits but nothing as large as 1/2". So I will be buying a new set of bits for this project - something I've needed for a long time anyway.
Then I thought of the step drills. I had never heard of them before I read about people using them on this forum - mostly when installing Ken's hooks. So I wonder if a step drill will work better for me on this project or should I just do it the old way I know of and start with a small bit and work my way up to the 1/2".
I'll be using both a 3/8" and 1/2" electric (read plug-in old school) drills.