Engineered for professionals who demand precision and visibility, the Crescent Lufkin CB08BA HardMark Blue Chalk Refill delivers superior performance in a compact, job site–ready package. Whether you're working indoors or outdoors, this high-visibility chalk ensures your layout lines are bold, crisp, and built to last.

Key Features:

• HardMark™ High-Visibility Formula
  Crescent Lufkin’s proprietary HardMark Blue chalk is designed to be three times more visible than standard chalks, offering exceptional contrast on a wide range of surfaces and in varying light conditions

• Compact 8 oz Bottle
  Ideal for small to medium jobs or as a portable refill option, the 8 oz size is lightweight, easy to store, and perfect for keeping in your tool bag.

• Anti-Roll Bottle Geometry
  The uniquely shaped bottle is engineered to stay put on sloped or uneven surfaces, reducing the risk of spills and improving job site safety

• Fast, Mess-Free Refills
  Features an easy-fill bottle top that allows chalk to flow quickly and cleanly into your chalk reel, minimizing downtime and cleanup

• Professional Compatibility
  Works seamlessly with all Crescent Lufkin chalk reels and is compatible with most standard chalk line tools used by professionals.

• Durable Packaging
  The rugged plastic bottle is built to withstand tough job site conditions and is easy to transport and reuse.

Specifications:

• Product Name: CB08BA HardMark Blue Chalk Refill
• Chalk Color: HardMark Blue
• Volume: 8 oz
• Bottle Dimensions: 7 in (H) × 2 in (W) × 3 in (L)
• Weight: 9.1 oz (0.572 lb)
• Material: Fine chalk powder
• Warranty: None (consumable item)
• Manufacturer: Apex Tool Group

Ideal For:

• Framing and layout work
• Roofing and siding
• Concrete and masonry marking
• General construction and remodeling
• High-contrast marking on light or textured surfaces