21. Metal ferrules may be of aluminum, nickel, copper, or nickel-plated steel. 22. When inspecting a new brush, make sure that the ferrule is firmly attached to the handle. 23. A ferrule , by the way, is the metal band connecting the handle to the bristles. 24. For ceremonial versions, a ferrule clamp is extremely ornate ( " Tampo " ). 25. The ferrule fits inside the gutter so the spike doesn't squeeze the gutter out of shape. 26. The integrity of the compression fitting is determined by the ferrule , which is easily prone to damage. 27. This is attempted as a temporary solution to prevent a leak until a proper ferrule can be procured. 28. The name " FC " is an acronym for " ferrule connector " or " fiber channel ". 29. When using certain clamp types, such as the lift terminals, no wire end ferrules are required. 30. The screws come with a ferrule that fits inside the gutter, and a special tool to drive them.
