Keywords are: 'thief skill explosives' Skill: explosives Lvl 29 Thie (21%) (helpful) Requires: mechanical aptitude Group: Thief tinkering Profession This skill allows thieves to build basic frag grenades. It also helps the thief identify components that can be used in grenade recipes. See also 'help build grenades' for more information. If you also know the 'firearms proficiency' skill, you can build cartridges. See 'help build cartridges' for more information.