[stumpeater]

I didn't recommend this for everyday use, just for the odd occasion. Yes the drill bit would get hot in thick steel, but the steel/ aluminium on the cobra is no problem. As for the danger, it is no more dangerous than a grinding disc. The outer edge of a 100mm disc is travelling at 52m/sec @ 10,000 rpm whereas the 6mm drill bit is only doing 3m/sec, if the disc came apart, which can happen, much more shrapnel to dodge and travelling faster too! I've got one of those angle attachments, and find it hard to control in tight spots as you have to hold the drill and the attachment at the same time. Anyway it works for me. Peter.