What to look for in bits?

[Boyan Silyavski]

But don't forget that single flute cutters can (with a little practice) be easily re-sharpened off-hand with a suitable grinding wheel.

I am a big fan of resharpening as it saves money. Thats the reason i have bought myself fine diamond plates to resharpen the flat bottom surfacing bits. And thats why i use straight 6mm bits for wood. If you mean straight 1 flute bits, yes, positively are easy to resharpen.

But to tell you the truth from the moment i bough insert tooling, i could say only WOW, quality and life time are not achievable by any other bit. So i always try to do the job with the insert, unfortunately the smallest cutter is 12mm 1 flute, but its incredible.