This is a specially designed upgrade and replacement for a Chaotic Lab CNC Tap Kit. This is spec mgn7 carriage/rail made to the appropriate length and cutout. Berserker Rails are the highest quality 3D Printing made rail on the market. Enjoy!

These come dry and clean, you will want to lubricate these before use. We have spec’d these for a heavier than normal pre-load as recommended by the Voron Design team.