3-4 – Size 0, 5-6 – Size 1, 7-8 – Size 1B, 9-10 – Size 2, 11-13 – Size 3A
The Ferrule is the name given to the metal band that unites the pencil with the rubber, An essential tool if, like me, you can’t spell! A simple but very useful invention used in many applications where two different items are jointed together. Ferrules are often referred to as grommets within the manufacturing industry. Where’s Wallace??
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