Theoretically yes. The standard rule for overvolting motors is that 150% is the maximum safe value (so for a 12V motor this would be 18V) but you can never be totally sure when it comes to running components beyond their specification. I've got a pair of the Argos drills but I haven't used them yet. However I will be running them on 19.2V (slightly over the 150% rule) so will see how they perform then.