1.【Size】Solid Carbide Spotting Drill Size：Shank Diameter：3/4in，Number of Flutes：6 Flutes，Angle：Variable Geometry,Variable Helix，Length of Cut：1-1/2in，Finish：AlCrN Coated，Cutting Diameter：3/4in, MaterialType: Carbide，Overall Length:4in 2.【Application】: Used for general purpose milling in most materials of medium hardness such as copper, copper alloy, cast iron, steel, carbon steel, alloy steel, pre-hardened steel, brass, and nonferrous materials.HRC 45~55. 3.【Features】： AlCrN Coated for improved performance and tool life in harder materials or high temperature applications.Precision ground using the grinding wheels. High strength and hardness, abrasion resistant, practical, easy to use and durable in use. 4.【Material】： Tungsten carbide point drill is made of extra grade tungsten steel, the knife edge is sharp and wear-resistant, not easy to stick the knife, continuous processing is not easy to break the knife. 5.【Service】 We provide lifetime technical support and after-sales service. If you have any concerns, please feel free to contact us. 1.【Size】Solid Carbide Spotting Drill Size：Shank Diameter：3/4in，Number of Flutes：6 Flutes，Angle：Variable Geometry ,Variable Helix，Length of Cut：1-1/2in，Finish：AlCrN Coated，Cutting Diameter：3/4in, MaterialType: Carbide，Overall Length:4in 2.【Application】: Used for general purpose milling in most materials of medium hardness such as copper, copper alloy, cast iron, steel, carbon steel, alloy steel, pre-hardened steel, brass, and nonferrous materials.HRC 45~55. 3. Package Included: 1pc 6 Flute 3/4" x 1-1/2" x 4" Variable Helix End Mill