Specification Brand : LAZIRO BulletPoint1 : Great for detail work, Not great for hogging out material. BulletPoint2 : *100% brand new and high quality. BulletPoint3 : *Premium Material: 45 steel and YG6X alloy cutter head that prevents bit cracking; drill bit set made of hard and durable alloy, provides longer life. BulletPoint4 : *Unique Design: U type slot design with fast drilling dust remove, antiskid triangle handle allows the drill bit to be held tightly and stable in a power drill. BulletPoint5 : *Wide Usage: Spear pointed design strong tungsten carbide tip can easily penetrate various materials like tile, concrete, brick, glass, plastic, and wood, etc, and reduces breakout. CuttingAngleString : 135.0 degrees ExternallyAssignedProductIdentifier : 7708857627984 FinishType : Finished ItemName : LAZIRO 7PCS 3-12mm Drill Bits Set Multifunctional Drill Tool Ceramic Glass Punching Hole Working Set Wood Metal Marble Drill Power Tool ItemPackageQuantity : 1 ItemTypeKeyword : hole-saw-sets Manufacturer : LAZIRO NumberOfItems : 1 PartNumber : yuanyanhong ProductDescription : Great for detail work, Not great for hogging out material. Specifications: Material: Hard Alloy Tool Holder Type: Triangle Handle Cooling Type: Outer Cold Blade Top Corner: 135° Category: Hole expansion drill Diameter: 3mm, 4mm, 5mm,6mm, 8mm,10mm,12mm Color: As Pictures Show Package Contents: 7*Drill Bits ProductSiteLaunchDate : 2023-06-13T06:34:02.911Z SurfaceRecommendation : Ceramic,Glass,Metal,Steel,Wood UnitCount : 1