Grip Bench Press
You will need a medium size barbell for this exercise. On a flat bench, lie on your back. Now slowly start raising the barbell, so that your elbows are locked. While you return to the starting position, just before the barbell touches the chest, lift up the barbell again, with a bounce. The bounce ensures that your arm muscles are used instead of your chest muscles, which would have been the case if the barbell had to come all the way down.