Specification Brand : ASNOMY BulletPoint : 4" M14 Knotted Wire Cup Brush BulletPoint1 : [Pack of 14] You will get 14 stainless steel bore brushes in different sizes with bristle lengths of 0.32"(8mm), 0.35"(9mm), 0.39"(10mm), 0.43"(11mm), 0.47"(12mm),0.51"(13mm),0.55"(14mm), 0.59(15mm), 0.63"(16mm), 0.67"(17mm),0.75"(19mm), 0.79"(20 mm),0.87"(22mm) and 0.98"(25mm). Sufficient quantity and various sizes meet all your cleaning needs. BulletPoint2 : [High Quality] The shank of our abrasive drill brush is galvanized to ensure its excellent rust resistance and durability. The bristles are made of stainless steel and featuring a twisted wire form to make them tougher and more durable for powerful cleaning. BulletPoint3 : [Universal Hex Shank] The universal 1/4" hex shank design allows this wire brush to easily mount on a driver handle, power drill, or die grinder for efficient cleaning. BulletPoint4 : [Widely Application] The round wire cleaning bore brush is designed for easy access to narrow holes and narrow areas, widely used in dust removal, rust removal, corrosion removal and polishing of pipes, ports and bearings. BulletPoint5 : [Warm Tips] Please keep in mind that these stainless steel hole brushes can only be used in push and pull motions. When using a drill or die grinder, avoid turning counterclockwise and do not exceed 600 rpm. Color : Steel color CompatibleMaterial : Stainless Steel CompatibleMaterial1 : Aluminum CompatibleMaterial2 : Wood CompatibleMaterial3 : Stainless Steel CompatibleMaterial4 : Plastic CompatibleMaterial5 : Metal CompatibleMaterial6 : Alloy Steel ExternallyAssignedProductIdentifier1 : 5013433960044 ExternallyAssignedProductIdentifier2 : 05013433960044 ExternallyAssignedProductIdentifier3 : 00662980216453 GpsrSafetyAttestation : 1 IncludedComponents : Stainless Steel Bore Brush ItemDisplayDimensions_Height : 7.83 inches ItemDisplayDimensions_Length : 5.16 inches ItemDisplayDimensions_Width : 3.4 inches ItemName : ASNOMY 14Pcs Stainless Steel Bore Brush for Drill,5/16"-1" Metal Bristles Wire Brush Bore Cleaning Brush Set for Power Drill Cleaning, Abrasive Wire Brush with 1/4" Hex Shank ItemPackageDimensions_Height : 16.6116 centimeters ItemPackageDimensions_Length : 5.7912 centimeters ItemPackageDimensions_Width : 10.0076 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : abrasive-cup-brushes Manufacturer : ASNOMY Material : Stainless Steel Material1 : Blend Material2 : Blend Material3 : Blend Material4 : Blend Material5 : Blend ModelName : Stainless Steel Bore Brush ModelNumber : 51960004 NumberOfItems : 14 NumberOfPieces : 14 PackageLevel : unit PartNumber : AS0151-14 Pattern : Solid ProductDescription : ASNOMY 14Pcs Stainless Steel Bore Cleaning Brush Set for Power Drill Impact Driver 1) you will get 14 pcs stainless steel bore brushes, enough quantity and various sizes can meet your different needs, and suitable replacement for traditional hand wire brushes. 2)This new electric bore brush has a wide range of applications, suitable for electric drills, impact drivers, die grinders, and can be widely used in automotive, manufacturing or machining fields. Specification: Material: Galvanized metal shank + stainless steel bristles Quantity:14Pcs Size: 8mm, 9mm, 10mm, 11mm, 12mm, 14mm,13mm, 15mm, 16mm, 17mm and 19mm, 20 mm, 22mm and 25mm