I made a Summit Pencil for my wife, which lasted a week before it stopped working due to the "transmission" (for lack of a better word ) failing and no longer extending the lead, but it does extend a small brass piece which I believe is what pushes the lead out. The thing is , this Wood Workers Shop, which is everywhere, and shall remain nameless, has sold me very poor quality kits. This is not the only one that quit. I had a Slimline with a broken out of the bag transmission. It came out in small pieces. There have been a few others and I no longer want to buy from them. So, where do I go to get decent kits? Are they all the same , just sold by different companies? Or, is there a decent place to get pens and pencils that will work for a long period of time?