Countersink Drill Bit Set 4PCS | 4241 High Speed Steel Deburring Tool | Chamfering Tool for Carbon Steel/PVC Plates/Insulating Plates | 2-20mm Oblique Hole

- Quick Smooth Chamfering - Countersink drill bits deliver smooth, polished edges in seconds, eliminating rough burrs and uneven finishes on your workpieces without extra sanding or filing.
- Extended-Use 4241 High Speed Steel - These chamfering tools are crafted from high-grade 4241 HSS, ensuring prolonged lifespan and consistent performance even with frequent use on approved materials.
- Versatile Material Compatibility - Deburring drill bits work effortlessly on carbon steel, thin iron plates, PVC, and insulating plates with hardness under 25 degrees, ideal for DIY and expert workshops.
- 4 Size Multi-Pack - This set includes 4 distinct sizes (2-5mm, 5-10mm, 10-15mm, 15-20mm) to handle various hole diameters, providing flexibility and convenience for diverse projects.
- Stable & Efficient Performance - Each drill bit features a robust oblique hole design that maintains structural integrity during use, reducing wobble and ensuring precise, safe chamfering every time.