The contact trip trigger on a nail gun is designed to allow firing whenever both the contact element (the nose of the gun, or "trip") and the trigger are pressed simultaneously. This feature enables rapid firing methods like "bump nailing," where the trigger is held down and the tool is bumped against the work surface to drive nails consecutively. However, this trigger type comes with significant safety risks because if the trigger is held down while moving the tool, accidental firing can occur if the contact tip bumps against any object or a person. To safely handle a contact trip trigger:
- Do not hold or carry the tool with your finger on the trigger unless actively driving nails.
- Avoid modifying or disabling safety features of the tool.
- Be cautious to prevent recoil or bounce that can cause unintended firing.
- Consider using a sequential trip trigger instead, which requires a strict firing sequence and greatly reduces accidental nail discharge.
In summary, the contact trip trigger should be used with care and only with proper safety practices, never holding the trigger while moving and always being aware of the risk of accidental firing. For safer operation, switching to or keeping a sequential trigger is recommended wherever possible.
