This enchant is obsolete.  It is replaced by TE-RewardFinderEnchant!

NOTE: This a custom enchant module require TokenEnchant plugin. 

This plugin contains a custom enchantment effect to let a player discover a key (such as a crate key) when a player mines a block.  Server owners can customize a command to issue a key using the key plugin (such as a cratekey plugin).  

Just install TE-KeyMinerEnchant.jar in TokenEnchant/enchants folder. Then you can either "restart the server" or "reload the plugin (not /te reload)". KeyMinerEnchantment will automatically be loaded into TokenEnchant framework.