Drilling holes in the TT's frame question

I start with a sharp center punch -- make a good divot where you want to drill. Then start with an eighth inch bit. Go very slow -- the goal is to cut long twisty waste, not little shards. Then step up, as slowly as possible. Wear good googles -- those steel fragments do not feel good when they get in your eyes.

I keep a strong magnet handy to pick up the fragments. Makes clean-up a lot easier.

Harbor Freight sells tapered bits -- they work pretty well on mild steel but not on really hard steel.