The Barnes CR-2 CR-10 Precision Bore Cleaner (2 oz) is a high-efficiency solvent formulated to remove copper, lead, and carbon buildup from metal surfaces and precision components. Designed for professional maintenance, it ensures clean, corrosion-free operation of tools, equipment, and other metallic assemblies requiring detailed care. This laboratory-grade cleaning compound delivers fast-acting performance without abrasive materials, protecting delicate surfaces from damage while restoring optimal functionality. Its advanced formula penetrates fouling and residue, allowing for easy wipe-off and reduced wear during use. Ideal for mechanical, industrial, and laboratory applications where residue control is essential, the CR-2 CR-10 cleaner enhances metal preservation and long-term surface stability. The 2 oz precision bottle is easy to handle, resealable, and portable — perfect for use in controlled environments where accuracy and cleanliness matter.