Scriber. Wow, it's thick! The refill of the new CARPENTERS PENCIL measures a full 5.6mm thick. Just what you need to outline your ideas powerfully, even on rough surfaces such as wood, stone, and concrete. With legible scales and an integrated sharpener, the mechanical pencil is indispensable for outdoor use. Work dont play. But not only for craftsmen. Carpenter's pencil, clutch pencil (5.6 mm HB lead), centimetre or inch ruler, 1:20 m or 1:50 m scale, integrated sharpener, brass, laqueredyellow. Ideal for sketching and marking on rough surfaces such as wood, stone, and concrete With 5.6 mm HB leads (automatic pencil), legible scales, and integrated sharpener Ideal for craftsmen, carpenters, masons, concrete and reinforced concrete workers. Material: solid brass, with stable HB lead.