Specification Brand : Tiiyee BulletPoint1 : High Speed Steel Material: Lathe mill center drill is made of high quality high speed steel. This plain center drill bits set has high hardness, durability and is not easy to break BulletPoint2 : 60 Degree Tip Angle: The tip of bit tooling set is accurate 60 degree, which can be used to process the centering hole and countersink of general material. The center bit drill will be your great helper in drilling accurate centering holes BulletPoint3 : Excellent Workmanship: The high speed steel center drill bits kit is accurate positioning, sharp and durable. The center drill bit can drill accurate center holes in material prior to turning, or use as a starter bit for accurate holes BulletPoint4 : Spiral Flute Design: This spiral groove center drill is incisive, helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process. The use of enlarged chip flute design is conducive to high-speed operation and accelerate chip removal BulletPoint5 : Wide Application: This center drill with spiral groove is suitable for bench drills, milling machines, and machining centers. HSS center drill set can work with lathe machines and most electronic drills to drill holes in steel, iron, alum, carbon steel, brass CuttingAngleString : 60.0 degrees ExternallyAssignedProductIdentifier : 7440456475824 ExternallyAssignedProductIdentifier1 : 689353610021 ExternallyAssignedProductIdentifier2 : 0689353610021 GpsrSafetyAttestation : 1 ItemName : Center Drill Bits Set, High Speed Steel Kit Countersink Tools for Lathe Metalworking 5mm Tip Diameter Spotting Bit Mill Die Stainless Machining All Ground Spiral Centering Tooling Set 5pcs ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 11 centimeters ItemPackageDimensions_Width : 7 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : countersink-bits Manufacturer : Tiiyee Material : Carbide PartNumber : Tiiyee1neq6yhct2 ProductDescription : Description: 1. The center drill has wide range of applications, suitable for bench drills, milling machines, machining centers, etc 2. The center and spotting drill is sharping and wear‑resistant, made of high‑speed steel, with high hardness and long service life 3. The design of the center bit to increase the chip flute is conducive to high-speed operation to accelerate chip removal 4. With great workmanship, this countersink drill bit can perfect replacement for the old one 5. There are 5pcs center drill bits countersink tools, can meet your use and replacement needs, very practically