Kratonite maul

The Kratonite maul is a Tier 4, two-handed melee weapon used in the Dungeoneering skill, and was released with the Dungeoneering update. It can be found on the starting tables and can also be smithed. It is made from Kratonite ore, and requires four Kratonite bars and 38 smithing to make, giving 164 experience. To wield you will need to have a strength level of 30.

Dropping monsters
Kratonite maul