Korcraft/chainz

Chainz is a mod with various uses, mainly in the fields of weaponry and transportation.

Blocks
Threader - Used in the crafting of string from wool, and iron wire from iron ingots

Iron Chain Elevator - Used with a number of chains to craft an elevator, elevators require a lever and wil move either up or down depending on the lever's position, right clicking on the block triggers the elevator to move up or down 1 block.

Items
Chain - Crafted form 3 Iron chainlinks, which are crafted from 2 iron wire, used in the construction of elevators and some weapons.

Garrote Wire - 1 shots any non boss mob, but requires the user to be invisible.

Fiber Wired Bow - An enhanced bow that deals higher damage, and has better range.

Slingshot/Fiber Sling shot - Fires seeds as ammunition, with various effects based on the seedtype, the Fiber wire version does more damage.

Uses
The elevator can be used for variousthings wether that be a platform for lowering equipment down to a mining site, or a mobile platform for your base wether that be storage, processing or energy related, Elevators can have Chests,Batboxes, piping, and wiring placed on them without them being destroyed on moving (NOTE- It has not been tested wether items in a pipe will survive moving in an elevator, allow pipes to empty before moving the elevator).

Official thread/wiki/site
Chainz thread on the minecraft forums