Specification Brand : SEIWEI BulletPoint1 : This grinding head is uniform particle size and abrasive is not easy to fall off, long service life. BulletPoint2 : Can be installed on the electronic grinder, hanging mill and hand electric drill (not included here). BulletPoint3 : The grinding stones kit cover many possible kind of grinding application,for grinding, polishing, and deburring BulletPoint4 : Made of high-quality chrome corundum, which is high hardness, good wear resistance and uniform particles. BulletPoint5 : Widely used in precision polishing technology and burring, seam edge grinding process on the surface of the metal and wood. Color : Red FinishType : Chrome IncludedComponents : phone lens ItemName : 20 Pieces Shank Mounted Stone Heads 8mm Abrasive Mounted Stone Grinding Wheel Head Polishing Point Stone Heads Bullet Shape ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 16 centimeters ItemPackageDimensions_Width : 10 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : abrasive-grinding-mounted-points LensDesign : Zoom Manufacturer : SEIWEI Material : Metal, plastic and glass ModelName : fisheye lens,phone camera,phone camera lens ModelNumber : 4C3P9DHWE9Q3800PP10JITR8 NumberOfItems : 1 PartNumber : CXR-RT-230907A14 ProductDescription : Feature: 100% brand new and high quality. Precision ground for quick,easy sharpening of chain saw blades. Multifunctional abrasive stone mandrel mounted grinding polishing accessories. Grinding head uniform particle size,abrasive is not easy to fall off, long service life. Widely used in precision polishing technology and burring,seam edge grinding process on the surface of the metal and wood,or any other situation.