11. Wooden hilts have brass ferrule broadening towards the blade. 12. The cap may be either a plain ferrule or a flat knife-blade. 13. The handle and filling are joined by a band of metal called the ferrule . 14. Cartridge ( ferrule ) fuses have a cylindrical body terminated with metal end caps. 15. One of these designs includes a geometrical ferrule for the first time in history. 16. Wires with metal ferrules at each end were placed in the hubs to make connections. 17. If the nut is overtightened the ferrule will deform improperly causing the joint to fail. 18. The smelter includes an induction furnace for the manufacture of ingot s and metal ferrules . 19. Now drill pilot holes for the spike and ferrule fasteners, keeping spacer blocks in place. 20. And what exactly is a ferrule ?
