I'm using Grief Prevention in Tekkit: http://dev.bukkit.org/bukkit-plugins/grief-prevention/
on the server, but seems like people are still able to bypass claims by using various types of wrenches on for example Thermal Expansion machines.
Has anyone found solotion or some type of addon plugin for Grief Prevention plugin, what disables wrench usage?
Tekkit 1.6.4 version (recommended).