[Ant]

I wonder if they used Linotype, which is lead with a higher tin content, commonly used in the printing industry years ago, I have a 20 litre container left from my projectile making, it may just be plain old lead as the hammers deform easily! The mould would be handy, and buy borrow a projectile electric lead melter.......!

Brass work hardens and could damage alloy knock offs! If you use a brass hammer it will mark the spinners. I suppose if you havent a lead hammer, use a brass hammer with some thick alloy folded to fit on the wings, so it allows the spinner to be knocked tight without unecessary damage!

I wonder how the tools work like Cobra Accessories sell, that allow you to torque the knock off same as the large nuts that most race cars have nowadays, the system is the same just a big thread and a fastener!