Highly Practical: Choose the size according to your needs with this 6-piece beveled cutter. Suitable for household and general construction and engineering, especially for DIY use. Suitable for drilling holes in wood and soft metals, 90 degree holes in wood and soft metals, countersunk screws and fixings for materials under 65°F (25°C), metal such as metal, aluminum, plastic, chamfering, deburring, slout thin plate holes, and deburring vacuum pipe chassis cases, etc. Best suited for