Specification Brand : Hilitand BulletPoint1 : 【HIGH SPEED STEEL】The step drill bit is made from high speed steel which has high hardness and good wear resistance. BulletPoint2 : 【4mm-20mm】This single drill bit can be used for drilling a wide range of hole sizes from 4mm to 20mm, can be widely used. BulletPoint3 : 【WIDE APPLICATION】Step up drill bit is most commonly used on softer materials such as thin iron sheet, aluminum, PVC and wood board of 4mm or .Great for use in work where thin steel, aluminum or plastic boxes and chassis are encountered. BulletPoint4 : 【HIGH SPEED STEEL】The step drill bit is made from high speed steel which has high hardness and good wear resistance. BulletPoint5 : 【CLEARLY MARKED】The hole size are clearly marked on the surface, you can check the data easily. BulletPoint6 : 【Friendly Reminder】Due to high-speed rotation, the temperature of the drill bit will rise. It is recommended to add cutting oil or spray water to cool the drill bit during continuous operation, which can effectively extend the service life of the step drill. Color : Multi CompatibleFastenerDescription : 0.25 inches CuttingAngleString : 135 degrees DriveSystem : hex ExternallyAssignedProductIdentifier : 4975180580504 ExternallyAssignedProductIdentifier1 : 798382707111 ExternallyAssignedProductIdentifier2 : 0798382707111 FinishType : Titanium GpsrSafetyAttestation : 1 IncludedComponents : Drill ItemLength : 7.5 centimeters ItemName : Hilitand Step Drill Bit, High Speed Steel Stepped Cone Drill Bit Coated Spiral Flute Hex Shank 4-20mm ItemPackageDimensions_Height : 6.604 centimeters ItemPackageDimensions_Length : 1.7018 centimeters ItemPackageDimensions_Width : 3.9878 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : step-drill-bits Manufacturer : Hilitand Material : High Speed Steel Material1 : High Speed Steel Material2 : Alloy Steel Material3 : Cobalt Steel Material4 : Blend Material5 : Blend MeasurementSystem : Metric ModelName : 05104672001 ModelNumber : Hilitanderny53puqm NumberOfBoxes : 1 NumberOfFlutes : 2 NumberOfItems : 1 NumberOfPieces : 1 PackageLevel : unit PartNumber : Hilitanderny53puqm Pattern : Solid ProductDescription : Specifications: Material: High speed steel Finishing: coating Step Size: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm Hex Shank: 1/4" Quantity: 1pc