✅ **Versatile Chamfering & Deburring Tool:** Perfect for removing burrs and chamfering round holes on **metal, wood, and plastic**. Ideal for cleaning up **3D prints** and delivering **smooth, clean edges** with ease. An essential tool for precise **countersinking** in various materials. ✅ **Premium M2 High-Speed Steel Blade:** Equipped with a **durable and ultra-sharp** M2 high-speed steel blade for superior cutting performance. This **countersink drill bit** is designed for long-lasting use, providing **efficient, clean hole deburring** without deformation or wear. ✅ **Wide Diameter Compatibility:** Designed to handle **countersink holes** ranging from **1mm to 16.5mm** in diameter. The **90° tapered tip** ensures smooth, accurate chamfering, making it perfect for both **professional** and **DIY projects**. ✅ **Effortless Operation & 360° Rotating Blade:** The **revolving blade** rotates freely for quick and efficient **burr removal**. Easy installation—just compress the mounting head to switch blades. This **practical hand reamer** is sharp and effective—handle with care and keep out of children's reach. ✅ **Ergonomic Metal Handle for Maximum Comfort:** Featuring a **polygonal ergonomic design**, the sturdy metal handle ensures a **secure grip** and reduces hand fatigue during extended use. A **must-have chamfering tool** for precision work on any surface. Deburring Countersink Tool Set