A metal ferrule holds the hair-spreading wedge and the shell slide in place.
Oiling the brushes reduces the buildup of pigment in the ferrule, the metal part that many brushes have to hold the hairs in place.
He noted the nails of his shoes and the iron ferrule of his staff clung to a rock.
A capillary is placed through a ferrule in the cap so that one end is in contact with the liquid in the tube or vial.
The second yard is attached with a ferrule to the second bow.
The ferrule is broken off of the fastener after the weld is completed.
It has carbon fiber and kevlar monocoque structure with aluminium ferrules.
The ferrule tends to be around 8 cm (3 inches) in length.
