Full Sequential Trigger

The full sequential trigger is the safest type of trigger because it will only fire a nail when the controls are activated in a specific order. The safety contact tip must be pushed into the work piece first, and then the user can squeeze the trigger to release a nail. The safety contact tip and trigger must both be released and activated again to fire another nail; nails cannot be bump fired with a full sequential trigger.

There are various advantages and disadvantages associated with this type of trigger. It is useful for intermittent nailing where accurate placement is needed, such as in framing, cabinetry, and carpentry tasks. In tasks like this, a full sequential trigger reduces the possibility of driving an unwanted nail (double firing) if you accidentally bump the safety element against yourself or others. One disadvantage is that this slightly reduces the speed of operation compared to a contact trigger. In addition, ricochet accidents can occur if you nail into another nail, the surface is too hard, or the tool is at an angle. You should work only from a sturdy and stable surface. Do not press your finger on the trigger unless you are ready to fire.

Other names for this type of trigger include:

• Single-shot trigger
• Restrictive trigger
• Trigger fire mode

To learn more about Nail Gun Safety visit our Construction Nail Gun Safety Online Training web page.