Silhouette Cameo Blade Holder

A friend of mine uses the Cameo regularly as part of his business. He mentioned that the aluminum blade holder he had was a bit to heavy for the Cameo and would bounce a little as the cameo head traveled. This part is essentially the 3d model of the all aluminum CB09 model. Both versions require the extra parts that come with the CB09. I have no way to measure the threads and thread pitch of the inner and outter threads from the original model. V1 did not work with black screw on cap and