Specification Brand : LUTRZPVT BulletPoint1 : Combination Drill & Taps BulletPoint2 : This is the New HSS Steel Large Step Cone Drill Bit Set Hole Cutter, BulletPoint3 : which is made from high quality HSS steel, and with the coated to reduce friction and heat BulletPoint4 : It is very suitable for using to cut holes in a variety of materials including thin steel, brass, wood, plastic, etc BulletPoint5 : 3. High heat treated hardness 68-70 HRC. BulletPoint6 : 4. Can be used radial drill, bench drill or hand drill chuck for drilling operations. Color : 4-32mm ExternallyAssignedProductIdentifier : 7375609441114 ItemName : Step Drill Bit 4-32mm Step Cone Drill Spiral Groove Wood Metal Hole Core Drilling Tools 1Pcs ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : combination-drill-and-taps Manufacturer : LUTRZPVT ModelNumber : LUTRZPVT NumberOfItems : 1 NumberOfPieces : 1 PartNumber : LUTRZPVT ProductDescription : Combination Drill & Taps Step Drill Bit 4-32mm Step Cone Drill Spiral Groove Wood Metal Hole Core Drilling Tools 1Pcs