[ ] thick carpentry pencil is 7 inches long, 3/16" wide, 5B, sturdy flat lead easy to sharpen with a knife or pencil sharpener, can draw a line of dark marking ly visible on a range of rough materials and will not stain on marking surfaces Size Pen body design _x000D_[PROFESSIONAL DESIGN FOR CONSTRUCTORS] Larger surface area builder pencils are easier to grip and their rectangular hexagonal shape prevents them from rolling. The non-round core allows you to draw thick lines on rough surfaces and -precision thin lines simply by turning the pencil _x000D_[EXTRA-SMOOTH WRITING] Sturdy marking pencils can withstand the stress of marking on hard, rough, uneven surface materials including wood, plywood, cardboard, concrete, unfinished wood, wood, paper, concrete, stucco, plaster, brick for marking lines saw, molding, drill points _x000D_[MUST HAVE FOR PROFESSIONALS] Built to survive all kinds of workbenches, job sites and tool bags. Industrial grade marking tool is useful, will be loved by carpenters, construction workers, contractors, DIY enthusiasts, craftsmen, builders, tradesmen, masons, home service providers _x000D_[WIDELY USE] An important tool for renovation projects. If you've been on a job site long enough, you've probably learned to appreciate the finer things in job site life, like pencil lead that doesn't break every time you take a knife to it and stays sharp more than three. click on a table. This carpenter's pencil is perfect for any busy woodworker!