28-02-2015, 08:19 PM
Depends what you're drilling mate. Most I normally do at work is about 2mm steel doing panel casings. The key is slow RPM, fair bit of pressure on the drill and to try and keep the bit cool, some sort of cutting oil (although I just use WD40 as I hardly put mine through much pressure)
Team Eaton
1999 China Blue 306 GTi6 - Eaton Supercharged - 214.5bhp 181lbft
1999 China Blue 306 GTi6 - Eaton Supercharged - 214.5bhp 181lbft