That's a good point... we're breaking drill gearboxes constantly at the moment, with the three pins loosening on the second stage, often rounding those three metal gears, damaging the other plate and burning the motor out as they go. 12v motors at 18v. Lots of people overvolt the GR01s, and I haven't heard any horror stories. Why is that? Are the innards of these the same as standard drills? We'd upgrade to Gimsons if we could guarantee we wouldn't just strip these gearboxes too.

Of course, I can completely understand that putting 18v through a motor setup designed for 12v is a risk the person buying is responsible for. I just like the power between breakages.

Why do we eat gears (we more or less completely stripped 4 metal gears in one go when Jarvis and I were playing in the street) so much when 18v has been put through 12v drills without problems for ages?

Sorry for going off topic.