Specification Brand : LUTRZPVT BulletPoint1 : Combination Drill & Taps BulletPoint2 : 1.The ladder of its structure, a bit can open a variety of specifications of aperture. BulletPoint3 : 2.Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken. BulletPoint4 : 3.Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable,but it is possible. BulletPoint5 : 4.The use of tools: drill, bench drill.Work while water cooling,can effectively extend the service life of drill bit, recommend drilling rate of 250-250 RPM. Color : One Color ExternallyAssignedProductIdentifier : 7375609441299 ItemName : Step Drill Bit 1 Piece 3-13 4-22 6-35mm Hex Shank High Speed Steel P6M5 Metal Drill Drilling Tools 1Pcs(1pc 6-35mm) 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 1 Piece 3-13 4-22 6-35mm Hex Shank High Speed Steel P6M5 Metal Drill Drilling Tools 1Pcs