A 30×400×35 mm flat demolition chisel is a heavy-duty bit designed for Jackhammers and Breaker hammers. The "30" represents a 30mm Hexagonal shank, "400" represents the 400mm total length, and "35" represents the 35mm wide flat cutting edge. It is primarily used for heavy-duty concrete breaking, brickwork, and asphalt.Key FeaturesShank Type: 30mm Hex (fits most 30mm hexagonal hammer chucks)Length: 400mm (approximately 16 inches)Bit Width: 35mmMaterial: Heavy-duty, heat-treated alloy steel for low wear and high impact resistance