Specification Brand : IE PARTS GROUP BulletPoint1 : Range: 2.7-4.1 in. Stone Style: 280 grit BulletPoint2 : For cast iron. Original # AN-500 BulletPoint3 : Includes two (2) stones and two (2) wipers. BulletPoint4 : [CROSSHOLE DEBURRING]-Accomplish finishing and deburring simultaneously in a single setup. Can be used in virtually any rotating spindle from a hand drill, drill press or CNC equipment. BulletPoint5 : [180 GRIT ZIRCONIA ALUMINA #1549 ABRASIVE]-Excellent on low carbon to medium carbon steels, stainless steel and cast iron. Also beneficial when you are looking for a more aggressive tool (ie deburring) compared to Silicon Carbide. Typically achieves a finish of 30 - 40 Microinch (.7 - 1 Micrometer). BulletPoint6 : [WHAT'S INCLUDED]-1 Each of a GBD Heavy Duty FLEX-HONE: 4.500"(114mm) Bore Diameter, 6" Abrasive Part Length, 0.310" Shank Diameter, 13.5" Overall Length. For Use on Bore Diameters Between 4.251"-4.500". PLEASE NOTE: ORDER BY BORE SIZE. CompatibleMaterial1 : Low Carbon Steels CompatibleMaterial2 : Medium Carbon Steels CompatibleMaterial3 : Stainless Steel CompatibleMaterial4 : Cast Iron ExternallyAssignedProductIdentifier1 : 843469150226 ExternallyAssignedProductIdentifier2 : 0843469150226 FitType : Universal Fit IncludedComponents : Stone set IsAssemblyRequired : 1 ItemName : IE PARTS GROUP Cylinder Honing Hone Stone Set M27-J65 AN500 280-grit 20 Ra Finish ItemPackageDimensions_Height : 6 inches ItemPackageDimensions_Length : 10 inches ItemPackageDimensions_Width : 9 inches ItemPackageQuantity : 1 ItemTypeKeyword : flex-hones Manufacturer : Sunnen Material : Stone ModelName : Honing Stones ModelNumber : M27-J65 NumberOfItems : 1 NumberOfPieces : 1 PackageLevel : unit PartNumber : M27-J65 ProductDescription : Set of Sunnen M27-J65 honing stones. Range: 2.7-4.1 in. Stone Style: 280 grit ProductSiteLaunchDate : 2018-02-12T18:07:19.841Z Size : 4.500"(114mm) Style : 180 Grit SupplierDeclaredDgHzRegulation : unknown SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 25170000 WarrantyDescription : Replacement before installation