COLLEEN 3030 Drawing Pencil (12/pcs)

Hardness: 6B 5B 4B 3B 2B B HB H 2H 3H 4H 5H 6H 

Color: Black 

Pencil hardness, also known as the pencil hardness determination method of coating film. It is a test method and measurement system for calibrating the hardness of coatings. 

According to industrial standards, the hardness of pencil leads is divided into 13 levels. It starts from the hardest 6H and gradually decreases through 5H, 4H, 3H, 2H, H, then to the moderately soft HB, and then from B, 2B to the softest 6B. 

Among them, H stands for hardness and B stands for black. The hardness decreases from 6H to 6B, and the color of the pencil becomes darker. 

The depth of color is related to the graphite content. The darker the color, the higher the graphite content and the softer the pencil.  

Retail Price for reference only.  For bulk order, please call us (Tel: 2575 2227 / WhatsApp: 5479 9956) for quotation.