Sadly I must contradict what Roger says about Proxxon.
I have four pieces of equipment that I bought from a local outlet a while ago now at about the same time, having some spare cash.
A mini sander, a gas mini blow torch, a pencil sander and the most expensive tool, a sanding power file, similar to the black and decker type ( which I have 2) but smaller.
The Mini sander lacks power and will sand using only lightweight paper of 100 grade and finer.
The pencil sander, although a good little tool when it works, has always had a switch fault and barr taking it back to the outlet that had gone bust, it would have cost me more to send back than it was worth, so it is used intermitently with ( what I think is ) a dodgy switch.
The sanding powerfile which had had minimal use and was still on it's original packet of belts suffered a total internal failure just out of it's twelve month warrenty and when I contacted Proxxon I was told that I could send it back for repair but there would be a minimum charge of £40.00 to look at it and then what ever it would cost to repair, so it now sits on a shelf.
The only tool I have that is any "good" and which works decently and without "fault" is the mini torch, but this cost me about 3 times as much as a replacement would cost from B & Q, and even that has a faulty filler valve and bypasses more gass on a fill than actualy goes into the reservoir tank.
I feel justified in posting this, ( and I know I have complained on this site about others having a go at manufacturers and suppliers in open forum) but I wrote to Proxxon twice with my problems and NEVER received a written reply to my problems.
Therefore I just feel that I have to warn people that for the price, there are, in my experience , better tools on the market for less price.