Black lumber crayon #500 wax-based marker. Marking range from -20 degree F to 150 degree F (-28 degree C to 66 degree C). All-purpose marker for all surfaces. More economical, longer lasting than ordinary wax crayons. 1/2" hex shape resists breakage and stays put without rolling onto the floor. The new fluorescent colors work well with the new computerized, scanner-equipped, cut-off saws. #500 - harder crayon marks easily in hot climates.. Weather-resistant, fade-resistant colors. Lead-free, non-toxic. Ideal for lumber, concrete, metal, plastic, rubber, ceramics, cardboard, smooth or rough surfaces, construction materials, utility poles, surveyor stakes, sewer and water pipe equipment, paper marking.
Known as layout chalk or "keel"
Clay based formula provides longer marking mileage; lead-free
Dimensions: 1/2" hex by 4-5/8" long
Use on lumber, concrete, metal, plastic, rubber, paper, cardboard, and ceramics
Makes weather-resistant, water-resistant marks