
Maxdrill R25 Drill Button Bit Thread Top Hammer Drilling Tools for Drifting and Tunneling. ISO9001 Certified Quality: Manufactured with ISO9001:2015 certification ensuring high quality standards. Alloy Steel Construction: Made from durable Alloy Steel and Tungsten Carbides for long-lasting performance. OEM/ODM Customization: Supports full customization from samples, designs, and minor adjustments. Fast Stock Delivery: Only 2-3 days delivery if stock is available for requested sizes. 24-Hour Response Support: Sales team responds to inquiries within 24 hours, excluding holidays. Free Quality Replacement: Free replacement provided if failure is confirmed due to product quality. 100% Final Inspection: Strict inspection and testing for every order before shipping out. 20 Years Export Experience: Over 20 years of export experience serving global markets.