For Heavy Duty tagging applications, this tool comes with 1 Short Heavy Duty Needle.
The Short Heavy Duty needle has an effective length of 0.5". The effective length of the needle is the portion of the needle that extends past the end of the tagging gun.
Heavy Duty needles have a larger diameter than standard needles. The larger diameter makes them stronger and better able to stand up to the wear and tear of tougher materials such as canvas or leather.