Yeh you just push it and it automatically clicks into material and leaves a small indent to stop skidding I find it very helpful on concrete block walls where they are knobbly it will deliver a drill point accurately even on the high point of the texture of the wall as the drill will tend to gravitate toward a depression every time.
It’s sprung loaded.
Push down where you want the mark and as you compress the spring, a catch releases and the point punches into the material you want to mark.
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