Specification Brand : COOLHOOD BulletPoint : Bits are titanium coated for maximum durability Drills 1/8-inch pilot hole and countersink hole perfect for #10 and #12 screws BulletPoint1 : Industrial grade TiALN coating, where Al2O3 forms on the surface-, forming a hard protective layer during drilling. (Suitable for high-speed drilling) BulletPoint2 : The same containing high-speed steel material, with a TiAIN coating on its surface-, can extend its service life three times. BulletPoint3 : The surface- hardness of the HSS-CO high-speed steel TiAIN coating after heat treatment- is as as 89 degrees. BulletPoint4 : Higher accuracy, achieving drilling burrs;Internal chip removal: eliminate metal chip splashing phenomenon. BulletPoint5 : Carbon steel, 304 stainless steel, etc. Industrial grade TiAIN coating (over 4241 and 6542 high-speed steel materials, longer lifespan!. Color : 2 to 5mm hole CompatibleFastenerDescription : Screws (#10, #12) CuttingAngleString : 90.0 degrees DriveSystem : Hex ExternallyAssignedProductIdentifier : 7446780396491 ExternallyAssignedProductIdentifier1 : 0033287168484 ExternallyAssignedProductIdentifier2 : 033287168484 FinishType : Titanium Aluminum Nitride GpsrSafetyAttestation : 1 IncludedComponents : 1 x Drill Bit ItemName : 1PC Countersink Deburring Chamfer Drill Bit 1-4/2-5/5-10/10-15mm HRC89 TiAlN Countersink Drill Bit Shank 1PC Countersink Deburring Chamfer Drill Bit 1-4/2-5/5-10/10-15mm Bit ItemPackageDimensions_Height : 4.88 inches ItemPackageDimensions_Length : 2.88 inches ItemPackageDimensions_Width : 0.47 inches ItemTypeKeyword : countersink-bits Manufacturer : COOLHOOD Material : High Carbon Steel Material1 : Stainless Steel Material2 : Alloy Steel ModelNumber : Asixxsixutdsxfpmez NumberOfFlutes : 2 NumberOfItems : 2 PartNumber : COOLHOOD ProductDescription : 1PC Countersink Deburring Chamfer Drill Bit 1-4/2-5/5-10/10-15mm HRC89 TiAlN Countersink Drill Bit Shank 1PC Countersink Deburring Chamfer Drill Bit 1-4/2-5/5-10/10-15mm HRC89 TiAlN Countersink Drill Bit Shank Features: The same containing high-speed steel material, with a TiAIN coating on its surface-, can extend its service life three times. TiAIN coating is resistant to ultra-high temperatures and can be used for a long-time without coolant, making it suitable for dry high-speed cutting. Industrial grade TiALN coating, where Al2O3 forms on the surface-, forming a hard protective layer during drilling. (Suitable for high-speed drilling) The surface- hardness of the HSS-CO high-speed steel TiAIN coating after heat treatment- is as as 89 degrees. Carbon steel, 304 stainless steel, etc. Industrial grade TiAIN coating (over 4241 and 6542 high-speed steel materials, longer lifespan!. Higher accuracy, achieving drilling burrs;Internal chip removal: eliminate metal chip splashing phenomenon.