Pulley Taps create internal threads in pulley assemblies' set-screw holes. They have a long shank that allows them to reach holes that a normal tap cannot. Their thread diameter is nearly equivalent to the diameter of their shank. They are checked under various parameters to ensure their high quality and durability. Pulley Tapscan also be used for general tapping in sections that require an extra-long length to reach the holes that need to be tapped. They require very low maintenance and replacement costs.