Drilling into wood(damp?) & getting poor quality holes

[Homerjh]

Think i know the reason, but just checking.

Drilling into wood, end grain (that i suspect isn't totally dry) and instead of getting a clean cut (with both a normal bit and a spade bit) it is rough on the inside and 'fibrous'.

So i am assuming this is because it is end grain, and also that it is slightly damp, so the grain still has plenty of flexibility so rather than get cut, it can move.

ta

 

[Random Orbital Bob]

end grain and damp won't help but having a decent quality bit (eg Fisch or colt) that's razor sharp and then to keep pulling the waste upwards and out will make an enormous difference.