Set di matite professionali da carpentiere, per fori profondi, marcatura e disegno, con mine da 2,8 mm in 2 scatole, per carpentieri

Instructions: It is suitable for marking through holes or other narrow areas. The sharpener is screwed into the top of the mechanical drawing pencil. The pen clip design can be easily hung on the bag, easy to use, and not easily lost. Solid woodworking pencils can draw on metal, plastic, glass, wood, paper, and other materials.