Hi Bingoboy ,these coated housings are excellent,I use this coating on my Irons as well to give you an Idea how well they will wear when I lap the Irons to remove 1.5 thousands off of the face takes 1.5 hours to take off the same amount with the plasma sprayed irons takes 6 to seven hours on the same lapping table and the finnished plates are returned to stock dimensions, thanks for the Interest .................

Hi Bingoboy ,these coated housings are excellent,I use this coating on my Irons as well to give you an Idea how well they will ware when I lap the Irons to remove 1.5 thousands off of the face takes 1.5 hours to take off the same amount with the plasma sprayed irons takes 6 to seven hours on the same lapping table and the finnished plates are returned to stock dimensions, thanks for the Interest .................