Specification Brand : Oumefar BulletPoint1 : 【 High Performance Step Drills 】 - This set replaces 50 individual drill bits. Two-flute design gives you faster, smoother cutting. 3-sided (TRI-FLAT) shank will not slip in your drill's chuck. Cobalt coated for smoother cooler cutting BulletPoint2 : 【 Coated Step Drills Set 】 - coated to reduce friction and run cooler BulletPoint3 : 【 Professional Quality Cone Drills 】 - Large bit has 3-sided shank and small bits have hex shank to prevent slip in drill chuck BulletPoint4 : 【 Automatically Deburrs Cone Drills 】 - Automatically deburrs holes as you drill BulletPoint5 : 【 Long Lifespan Two-Flute Step Drill 】 - Long Life high speed steel CuttingAngleString : 135 degrees ExternallyAssignedProductIdentifier : 8994244754091 FinishType : Titanium ItemName : Cobalt Coated Step Drills Bits Set 5Pcs Two-Flute 3-Sided Shank Step Cone Drills Hole Cutter Bit Set Tool with Aluminum Case ItemPackageDimensions_Height : 16.1 centimeters ItemPackageDimensions_Length : 4.6 centimeters ItemPackageDimensions_Width : 11.9 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : step-drill-bits Manufacturer : Oumefar Material1 : High Speed Steel Material2 : Cobalt PartNumber : Oumefarkx9irqd8b2 ProductDescription : Features: - This Item ia brand new - This set replaces 50 individual drill bits. Two-flute design gives you faster, smoother cutting. 3-sided (TRI-FLAT) shank will not slip in your drill's chuck. Cobalt coated for smoother cooler cutting - coated to reduce friction and run cooler - Large bit has 3-sided shank and small bits have hex shank to prevent slip in drill chuck - Automatically deburrs holes as you drill - Long Life high speed steel - Includes protective padded aluminum case - Package Size:15cm*10.5cm*4.2cm(L*W*H)