The first 2 to 6 inches of wood, from the joint forward, has an impregnable high-gloss finish that protects from dirt and moisture. The remaining area, up to the ferrule, is open-pore wood with a very smooth surface. Shaft diameter is constant for the first 6 to 14 inches below the ferrule, then it grows larger to match with the joint. Shafts vary in stiffness based on the length and style of taper to which they are cut. A short taper has less flexibility and produces a firmer hit, while longer tapers provide more flexibility and a softer hit.
Shafts affect the weight, balance, feel, and playability of a cue.
The joint provides precise alignment of the shaft and butt, allowing the transfer of impact energy to travel the cue's length. PIN - A threaded metal pin, glued into the end of the forearm, secures the connection. The pins vary in width, length, thread pitch, and channel depth. Wider pins screw directly into shafts that have tapped wood threads, while thinner pins require an insert in the shaft. Some inserts, however have a protruding nipple that pilots the shaft concentrically with a pin that is recessed in a collar at the joint, causing a harder hit.