7pcs Center Drill Bits Set, M2 High Speed Steel 60-Degree Angle Countersink Drill Bit, Size 1.0 1.5 2.0 2.5 3.0 4.0 5.0mm

High Quality Material -Center drill bit is made of high quality M2 High speed steel, it has high hardness, wear resistance and is not easy to break. 60 Degree Tip Angle - The center drill tip is accurate 60 degree, which can be used to process the centering hole and countersink of general material. It will be your great helper in drilling accurate centering holes. Multiple Sizes - It comes with 7pcs Center Drill Bits Set, they are in size 1,1.5,2.5,3.15,5mm, which can meet your different needs. Multifunction Applications - The center drill bit can work with lathe machines to drill holes in mold steel, cast iron, Alum, Carbon Steel, Wood, thread mold and other tough material, it will improve the the efficiency of drilling. Widely Applicable - Hardness: HRC65；Working hardness:HRB200-300 degrees. Widely used for processing alloy steel, cast iron, cast steel, copper, aluminum and other materials. Excellent Workmanship - Accurate positioning, sharp and durable.