HEY HEY HEY guys its me agian and during today and the six week hoiday i\'m gonna be askin a LOT I mean A-LOT ok so firstly I want to ask about drill bit you see as a willing studend who is enginenerring and just now in sience (so please ansewr quikly) what properites does an aluminium oxide drill bit have alot more questions after this one are going to be veary youtube and game related such as what do you guys want me to tweet pewdiepie on fridays whith pewdiepie and so on thanks and bye!!!!!!aluminium oxide coating on drill bits helps to keep the drilled metals from sticking to the surface of the drill. Brofist.....It doesn\'t have the drilled metal stick to it during drilling, it\'s hard, and it has a low specific heat capacity.It acts a lubricant.Other related question