Points
The replaceable points for Hammerhead darts are supplied three in a pack and come with needle-sharp points. Before inserting new points in your darts, "dress" them with a point-shaping device. This is a conical-shaped stone that removes the needle point and rounds it slightly. If a dart with a dressed point strikes a web wire on the board, it will tend to deflect from the wire and pierce the dart board. Points should be dressed regularly, making sure they are all the same length and not bent. Carry a spare set of dressed points in your dart case for replacement during play, if necessary, and include your special point wrench in your replacement kit.
Tension Collar
Hammerhead dart points are locked to the barrel of the dart by a screw mount equipped with a tension collar that holds the point in the extended position. You will find that the tension collar is subject to wear and will become loose after several hours of play. It is best that you dismantle and inspect your darts before matches to be sure the spring collars are in good condition, that the points are dressed and shafts that secure the flights to the dart are not damaged.
Shafts
Shafts are the slotted aluminum or plastic devices that hold the plastic flights that guide the dart in the air. Darts in the board are frequently struck by subsequently thrown darts, causing the shafts to split, bend or break. You are allowed to replace shafts during match play with no penalty, so always have spare shafts available. Hammerhead darts are threaded at the rear to accommodate rapid and easy replacement.
Flights
Flights are the part of a Hammerhead dart that guides it on a true path to the dartboard. They are fitted into slots so each wing of the flight is at a 90-degree angle in relation to the wings on either side. Tweak the flight wings as you play to be sure they remain at the 90-degree angle. Flights that are not aligned properly tend to be untrue and wobble on the way to the dartboard.
Barrels
Even though your Hammerhead dart barrels are turned from hardened metal, over time they will begin to wear. The acid from your fingers and impacting with adjacent darts will cause the gripping grooves to wear. Worn barrels can affect your accuracy, so be prepared to replace the barrels at some point.