Designed to cleanly cut brake and derailleur cable, as well as brake and compressionless "SIS®" derailleur housing. The CN-4 / CN-10 combines durability and versatility with an economical price. Crimper portion of tool crimps cable end caps to cables. Made of heat treated, high carbon tool steel, then precision ground and sharpened.

The CN-4 has been discontinued and replaced by the CN-10.