The old versions of these were pretty dangerous if you didn't watch what you were doing. The color codes are for different powers. The operator had an additional variable of how far the nail was seated down the barrel, there was a depth gizmo for this.
I was on a job when a guy was putting wooden nailers on top of I beams for a commercial deck. He was standing on a ladder and pulling down on the nail gun. He put the nail through the 2x and one side of the I beam and into his thigh and out his calf. Didn't see him back on the job.
I was on a job when a guy was putting wooden nailers on top of I beams for a commercial deck. He was standing on a ladder and pulling down on the nail gun. He put the nail through the 2x and one side of the I beam and into his thigh and out his calf. Didn't see him back on the job.