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Hey LSP community, Several months ago while I was living / working in Singapore and I picked up a really useful tool at a local hobby shop. The tool is a David Union 400 linear pen sander. It's a small, handheld pen-like device which has a thumb speed control and it comes with multiple head adapters with various shaped heads. The small plastic heads use sticky-sided sandpaper which you fasten to the head, and once the pad becomes worn out you just peel the worn off pad and simply apply another new sanding pad to continue sanding. Easy. The lateral motion has a 3mm fore & aft stroke and works brilliantly. I really hate to sand wing to fuselage seems, and this tool can really get into those tight areas without destroying a lot of surrounding area. When I got back to the USA at the end of last year, I tried to convert the plug unit on my 400 sander which has provisions for a totally adaptable plug head to receive various plugs from Europe and throughout Asia, but I wanted to convert it myself. There is no US distributor for David Union, so I cut off the 220 volt head and replaced it with a US standard 115 volt head. It’s didn't go as well as my Sparmax compressor adaptation which I converted the same way, so I ended up ordering the new plug from David Union. Fast forward: In communicating with them for the proper parts, David Union Group asked me if I would be willing to sell some of their 400 sanders here in the US. I agreed, and ordered a few extra sanders with my plug adapter purchase. All the extra sanders in this first shipment come with a USA standard 110 volt wall plug. In addition to the David Union 400 lateral sander, there will be three packets of various grades of adhesive-backed sandpaper. There is a cardboard template provided which you use to cut up the various sized sanding pads to fit the multiple heads included with the sander. More than enough for a long supply of this unique sandpaper. Here's a few images and a link so you can see what I’m talking about: https://i.imgur.com/Wtl4Wgj.jpg https://i.imgur.com/gC8kxRX.jpg https://i.imgur.com/bZwOHk3.jpg https://i.imgur.com/QYpJv8i.jpg http://www.davidunion.com/search/label/DAVID%20400 https://www.youtube.com/watch?v=xfpl3OOhJOA The price is $99.00 USD for the David Union 400 sander with sandpaper assortment and adapter heads. Shipping will be extra. Rest assured that this is the standard pricing that David Union offers online. I only offered to try and sell these for them after receiving the great support with my initial inquiry. If this venture goes well, my next shipment will be thirty sanders which I can order to specific global plug in adapters for various counties. I have already sold a couple of these unique sanders to my LSP mates but I thought I’d test the waters here to see if there might be any further demand. There are a couple pointed, round-shaft adapters which you can see on the website being used to remove the multiple 3D posts on a printed part. The unique feature is the lateral 3mm-stroke motion. Several imitations are out there but they just vibrate and don’t have the lateral motion. I’ve used this sander on an He 162 wing, and soon will be put to use on my PCM Macchi C.202, too. Kind regards and happy modeling. Troy