So what is the big difference in straight flute and spiral flute reamers... other than a few degrees.
Seriously the spirals I see don't have enough flute angle to really draw chips out, and for the most part if I am drawing chips out of the hole with a reamer I bored the hole to small to begin with.
I was filling in some of the badly worn (or broken) sizes in my sets today (mostly replacing with better quality since those are obviously sizes I use more) and wondered if there was any over riding benefit to getting spiral flute chucking reamers for the replacements.