I actually made a small flare in the end with the pointy thing and a hammer (center punch and hammer). Put the solid end (before flattening it out) on your vise on a flat spot with the end needing flaring pointing up. Put the center punch in the open hole and lightly tap the punch until the flare you want is made. You just need enough so the rubber hose does not slide off after clamped in place. You can now flatten the other end and drill the bolt hole in it.