Feeling like I'm making this harder than it needs to be, but it's taken me 2 hours to drill 4 1/2" holes and 8 3/8" holes in 1/4" plate (actually 24"-long angle). I center-punched the locations, pilot-drilled using Bosch TiN coated drills (3/16" until it broke, then 7/32). The 3/8" holes weren't too bad using my 18V cordless drill, but I needed to pull out my Bosch 1/2" corded drill for the 1/2" holes. The first one went fine, the second one grabbed the bit when it broke through and took me for a bit of a ride (now icing--externally and internally ) After deciding that I wanted to keep my thumb, wrist, and shoulder attached, I decided to move to the drill press. The Bosch 1/2" bit is dinged up a bit from the last break throught. Chucking it into the drill press I can see that it's running about 0.020" TIR, so I swapped in an old HSS 1/2" bit. With the angle firmly clamped, I was able to punch through a couple holes using oil and mineral spirits as lubricant, but the last two holes I drilled were more dramatic than I'd like--the drill seized several times, lots of smoke, etc. I still have a few more of these to drill. What am I doing wrong? TIA!