Aurora has had some plastic tubing covering the stainless gaff jaws since new. For those that are interested, I have posted some info on "leathering" the gaff jaws in my blog - https://travellingaurora.wordpress.com/ ... gaff-jaws/
Whilst the gaff jaw fitting was removed from the spar, I made a few measurements at the request of others. The two jaws make an angle of 135 degrees to the fitting. The spacing (outside edge to outside edge) of the "mouth" of the gaff jaws is 160mm.