The Krak Grenade is a type of explosive device used by the military forces of the Imperium of Man. Krak Grenades use a shaped explosive charge capable of punching holes in armoured targets such as vehicles or bunkers, and its charge can even rip armour plating apart. Typically they are attached directly onto vehicles or fortifications with magnetic, adhesive or physical clamps, maximising their effect on the target. They can also be used against monstrous creatures (such as the larger Tyranid bioforms), attaching them to the creature's carapace before detonation. These munitions are often used for attacking fortified defensive positions and vehicles, and provide Imperial infantry with a means of harming heavy targets that their primary anti-personnel weaponry may not be able to affect. However, the focused detonation lacks a blast radius, therefore making them impractical for use against enemy infantry.
- Deathwatch: Core Rulebook (RPG), pg. 150
- Warhammer 40,000 (6th Edition), pg. 62