If you are looking for a professional and countersink deburring tool set, then your research is over here. That's because our product can meet your need. Adopted of , it is practical and durable for long time use. It is easy to use and bring you much convenience. Features - Color: Silver. - Material: High-speed steel. - Size: About 8.40X2.80X1.20cm/3.30X1.10X0.47inch. - It is made of and durable materials and has a . - Reasonable design makes it easy to operate, saving time and effort. - These countersink deburring tools are great for cutting through metal, wood and plastic. - Widely used for workpiece circular aperture chamfering or cone hole, practical and useful. - After good processing, the structure is firm, you can use it with peace of mind. Package list: 4 x Chamfers Drill Bits