Irwin 66402 Blue Lumber Crayon 12 Pack All Surface

Product Description

The IRWIN INDUSTRIAL TOOL CO 66402 is a blue lumber crayon designed for marking on a wide range of job-site surfaces. It writes on oily, slick, wet, cold, and dry surfaces without skipping or smearing. The formulation is non-toxic and waterproof, making it reliable in outdoor and wet-area applications. This crayon is a standard marking tool used by carpenters, framers, concrete finishers, and other trade professionals who need a clear, durable mark that holds up through handling and weather exposure. Each package contains 12 crayons.

The 66402 is suited for use on lumber, concrete, ceramics, and metal — covering the most common materials found on residential and commercial job sites. It performs on surfaces that cause standard markers or pencils to fail, including freshly cut or pressure-treated lumber, poured concrete, and coated metal stock. The 12-count packaging makes it practical for crew use or keeping a supply in a service vehicle or tool bag.

Key Features

• Marks on oily, slick, wet, cold, and dry surfaces
• Non-toxic and waterproof formula
• Compatible with lumber, concrete, ceramics, and metal
• Blue color for high-visibility marking
• Package quantity of 12 crayons per unit

Compatibility

Designed for general-purpose job-site marking across lumber, concrete, ceramic, and metal surfaces in both residential and commercial trade applications.

Installation Notes

No installation is required for this marking tool. Store crayons in a cool, dry location to maintain marking performance. Keep caps or packaging intact when not in use to prevent breakage in tool bags or boxes.