Specification Brand : Artist Unknown BulletPoint1 : Series SD602, Head Connection Size Graflex 4, Pilot Type Pilot Drill Point, Maximum Drill Point Diameter (mm) 60.00, Maximum Drill Point Diameter (Decimal Inch) 2.3622, Pilot Drill Point Diameter (mm) 10.00 BulletPoint2 : Pilot Drill Diameter (Decimal Inch) 0.3937, Pilot Drill Style SD601x-10-R, Head Length (mm) 105.00, Head Length (Decimal Inch) 4.1339, Drill Head Style SD602, Through Coolant (Yes/No) Yes BulletPoint3 : Insert Holding Method Cartridge, Back of Head Diameter (mm) 40.00, Back of Head Diameter (Decimal Inch) 1.5748, Head Length to Pilot Tip (Decimal Inch) 4.5276, Head Length to Pilot Tip (mm) 115.00 BulletPoint4 : Part Number: 78157 ExternallyAssignedProductIdentifier : 3700091782942 ItemName : Seco 78142 Drill Heads Series SD602, Head Connection Size Graflex 4 ItemPackageDimensions_Height : 4 inches ItemPackageDimensions_Length : 15 inches ItemPackageDimensions_Width : 4 inches ItemPackageQuantity : 1 ItemTypeKeyword : drilling-holders Manufacturer : SECO Material : Solid Carbide ModelNumber : OSS78142 NumberOfItems : 1 PartNumber : 78142 ProductSiteLaunchDate : 2014-04-05T08:00:01.000Z StreetDate : 2017-03-12T00:00:01Z UnitCount : 1