Irwin 66401ZR Wax Lumber Crayon Red

Product Description

The IRWIN 66401ZR is a wax lumber crayon in red, designed for marking lumber, concrete, masonry, pipe, and other rough job-site materials. The wax formula leaves a clear, visible line on dry or slightly damp surfaces, making it a standard tool for carpenters, framers, pipefitters, and general contractors who need quick, legible marks on the material before cutting, drilling, or fitting. The crayon measures 4.75 inches in length and 0.56 inches in diameter, fitting comfortably in a tool belt or pocket. At 0.05 pounds, it adds minimal weight to a tool pouch.

The 66401ZR is suited for residential and commercial construction applications where permanent or semi-permanent marking is required on wood, concrete block, steel, PVC pipe, and similar rough surfaces. It is commonly used by framers marking stud layout, plumbers marking pipe cuts, and electricians marking conduit runs. The red color provides strong contrast on most substrate types, improving visibility in low-light job-site conditions.

Key Features

• Wax formula marks on wood, concrete, masonry, pipe, and metal surfaces
• Red color provides high-contrast visibility on most job-site materials
• Compact size at 4.75 inches long fits easily in a tool belt or apron pocket
• Lightweight at 0.05 pounds for all-day carry without added bulk
• Consistent wax core resists crumbling on rough or porous surfaces

Compatibility

Designed as a standard wax lumber crayon for general marking use on wood, concrete, masonry, pipe, and metal surfaces across residential and commercial construction trades.

Installation Notes

No installation is required for this marking tool. Store crayons in a cool location to prevent the wax from softening in high-heat environments such as direct sunlight or vehicle interiors. Replace when the crayon becomes too short to hold safely or when marks lose legibility on the target surface.