The Tectonic Fragdrill is a massive scenery piece particular to the Genestealer Cults. You can use the gigantic drill in a variety of ways in your games. It allows units to be removed from the table and redeployed closer to the enemy, and its immense power can also be harnessed to cause tremors that slow down nearby units, or a mighty quake that can split the earth in a straight line across the battlefield, causing mortal wounds to units in its path.
The Tectonic Fragdrill is designed to fit in with the range of Sector Mechanicus scenery, and boasts many of the same design features and components. The rails included with it are also compatible with the Galvanic Servohauler kit. This plastic kit consists of 63 components, including walkways, legs, a floor, chimneys and the drill itself. The datasheet for the Tectonic Fragdrill can be found in Codex: Genestealer Cults, as well as in the included construction guide.