Description:Featuring many merits like high hardnessgood wear resistance, uniform particles and hign sharpness.Our product has a variety of specifications to meet your different needs. The reason for the long service life is that the frosted particles of its appearance are not easy to fall off.This product is made of emery,ceramic and stainless steel.The length of the product is 4.6 cm.Mainly used for DIY grinding and polishing of jade, wood, metal, molds,and more other materials.Item Name: Polishing Grind HeadMaterial: Stainless Steel,Ceramic,EmerySize Details: Grinder Head Length: 4.6cm/1.81" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. There are three sizes to choose from, 4.0mm is commonly used for small chain saws, 4.8mm is used for small chain saws 325 and large 8 chains, and 5.5mm is used for large 404 chains.Package Includes:10 x Grinder Heads