Oh, it seems I haven't checked out the conversion rate in quite a while, it was actually the equivavlent of 80USD today.
Anyway - why don't you just buy a longer 3,5mm drill bot and use instead of the short one that the 492523 is equipped with? I did exactly that (i got another 492523 when i bought the centrotec systainer) - now i have one with a short pilot hole bit (the original) and one with a long pilot hole bit - works perfect.