
High Speed Metal Material R28X38mm Top Hammer Drilling Tools for Excavation Work. High Performance Material: Made of High Manganese Steel and Tungsten Carbide for durability. Fast Drilling Efficiency: Features fast drilling speed and high efficiency compared to traditional bits. Long Service Life: Extended lifespan with no need for repeated grinding. 2-Year Warranty: Comprehensive 2-year warranty coverage before using. ISO9001 Certified: Products certified with ISO9001 and other international standards. Customizable Color: Color options available upon customer request. Flexible Packaging: Wooden box, paper box, or customized packaging as per inquiry. Global Export Experience: 7 years export experience covering Europe, South America, and Asia.