Specification Brand : ZIOJOVK BulletPoint1 : Premium Quality: M4 mandrels are made of high-hardness carbon steel to maximize wear and tear; you don't need to worry about breakage and the short service life of the accessories BulletPoint2 : Easy Replacement: The accessories we provide have been through strict testing, which perfectly fit the size and weight you need, saving time and effort on retrofitting and replacing BulletPoint3 : Sturdy & Durable: You will get 2 mandrel . Rivet nuts are made of thick carbon steel, which is treated with high-temp machining to prevent corrosion and increase durability BulletPoint4 : Save money and replace nut rivet mandrel instead of buying a new riveter,Fits many standard nut riveters. BulletPoint5 : Comprehensive Service: We are confident in our products. If you find any problem with the product, please let us know in time to replenish the goods. Wish you happy shopping ExteriorFinish : Bronze ExternallyAssignedProductIdentifier1 : 731052633570 ExternallyAssignedProductIdentifier2 : 0731052633570 ItemName : ZIOJOVK 2PCS Riveting nut Tool Replacement Mandrel, Metric and SAE Mandrel (M4) ItemPackageDimensions_Height : 14.2 centimeters ItemPackageDimensions_Length : 2.7 centimeters ItemPackageDimensions_Width : 10.4 centimeters ItemTypeKeyword : abrasive-mandrels Manufacturer : ZIOJOVK Material : Carbon Steel MetalType : Carbon Steel ModelNumber : M4 NumberOfItems : 2 PartNumber : 111 ProductDescription : ZIOJOVK Store is selling most frequently useful sizes of Mandrels and Rivet Nuts