Carpenter Pencil Irwin 18 cm 66305SL — wooden marking pencil for woodworking

Irwin carpenter pencil 18 cm 66305SL is a wooden marking pencil designed specifically for woodworking and construction layout. The flat, rectangular profile prevents rolling on work surfaces and ensures stable, straight marks on wood, drywall and other common building materials. Its solid wooden body and medium-hard graphite core provide clear, visible lines for measuring, transferring marks and guiding cuts in joinery and framing tasks.

Advantages

The flat shape keeps the pencil from rolling and allows for consistent marking along edges and templates. The wooden construction offers durability and a comfortable grip for repeated use on site. The graphite core produces marks that are visible yet can be removed or sanded away when finishing surfaces. The pencil’s length provides reach and a familiar ergonomic feel for tradespeople and DIY users.

Suitable for

• Marking lumber and sheet materials during cutting and joinery
• Transfer of layout lines on drywall and plasterboard
• Marking centerlines and reference points for drilling and assembly
• Use on templates, jigs and measuring tools in carpentry

Key specifications

• Material: wooden body with graphite core
• Length: 18 cm
• Profile: flat / rectangular to prevent rolling
• Core hardness: medium (suitable for visible marks and easy sanding)
• Typical applications: woodworking, construction layout, DIY tasks

How to use

Hold the carpenter pencil flat against the workpiece to produce straight, even lines. For thicker lines, rotate the pencil so the wide edge of the core contacts the surface; for finer lines, sharpen the core to a narrow edge or use the pencil on its flat side near the corner. When marking templates or edges, keep the pencil steady and use a straightedge for precise layout lines. After marking, lines can be trimmed or sanded away during finishing if necessary.

Usage recommendations

Store the pencil in a dry place to prevent warping of the wooden body. Use a proper carpenter’s sharpener or a knife to maintain the flat core shape as needed, and replace the pencil when the core becomes too short to mark accurately.