This set gives you the two most commonly used tools for assembly of TeacherGeek systems. The TeacherGeek Multi-Cutter provides a safe and simple way to cut plastic connector strips, dowels, and wood strips. The reamer changes the holes in TeacherGeek components from a press fit (where they dowel stays stuck) to a loose fit (where the dowels spin and slide).
Update 8-26-15: The reamer has been redesigned to keep the bit from loosening from the handle. You can tell the new reamers because the tip is now silver (it used to be black). Let us know if you need any of your old reamers replaced. Reamers come with a lifetime warranty.