Introducing the SINOCOREDRILL Natural Diamond-Set NQ Reaming Shells, engineered for precision and durability. With a robust spiral design, they ensure efficient reaming and accurate hole diameters for all your drilling needs. Certified to ISO9001 and CE standards, these versatile tools are resistant to wear and tear—perfect for various applications. Weighing 12 kg for added stability, they guarantee long-lasting performance. Welcome to visit our website!