5B 3.2mm Graphite Lead Refill - 5 Pack Kaweco £5.00 5B - £5.00 Quantity This product is currently sold out. Please fill in the form below if you'd like to be notified when it becomes available. 5B 3.2mm Graphite Lead Refill - 5 Pack. Kaweco pencil leads are made of exceptional quality pure graphite. One package includes 6 leads. 3.2mm pencil leads fit in every 3.2 mm clutch pencil of Kaweco.