Specification Brand : Walfront BulletPoint1 : High Hardness-This Drill Bit is made of M35 material, includes 5% cobalt, high hardness, BulletPoint2 : 135-degree Split-point Tip-135-degree split-point tip starts drilling immediately with less force and eliminates BulletPoint3 : Application Material-This Drill Bits set is ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, Angle iron. BulletPoint4 : Sharp and -The Drill Bits with high finish, high grinding precision , the blade is sharp and in use. BulletPoint5 : Widely Application-Cobalt steel extends cutting life and maintains cutting life after resharpening. This Cobalt Drill Bits set is widely used in the drilling of stainless steel plate, automobile spring steel and die steel. Color : 1mm CuttingAngleString : 135.0 degrees ExternallyAssignedProductIdentifier : 7003547323840 ExternallyAssignedProductIdentifier1 : 0086071410382 ExternallyAssignedProductIdentifier2 : 086071410382 FinishType : Finish IncludedComponents : inc ItemName : M35 Cobalt Drill Bits for Hardened Steel HSS-CO Drills Set 1.0-5.0MM(1/1.5/2/2.5/3.0/3.2/3.5/4/4.5mm) Drill for Drilling on Stainless Steel Cast Iron Sheet Metal Steel Plate Angle ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 6 centimeters ItemPackageDimensions_Width : 5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : long-length-drill-bits Manufacturer : Walfront Material1 : Stainless Steel Material2 : Carbon Steel Material3 : High Speed Steel ModelNumber : 65600025100 NumberOfItems : 1 PackageLevel : unit PartNumber : Walfrontcaqzhg8p7y6571-07 ProductDescription : Descriptions: These drill bits are made of M35 material, includes 5% cobalt, high hardness, Cobalt steel extends cutting life and maintains cutting life after resharpening Ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, Angle iron.