Please note, this item ships from an international seller. Expected delivery is 10-15 days. Specification: Speed: 10000-13000RPM Number of links: 22 knife edges Material: Carbide Size: 4 inches Applicable models: 4'' or 4-1/2'' angle grinder Feature: 1.The 22 teeth design provides a smooth ?finished? surface which is great for minimal sanding afterwards. 2.Chains can be either be sharpened using a chain saw file or replaced as need be. 3.Great for curved work, like the inside of bowls, for fast waste removal. 4.This Grinding disc chain saw uses its speed and maneuverability to complete the cutting, engraving and removal of wood, plastic, ice and hard rubber. 5.Chains can be sharpened with a chain saw file or replaced as needed. And it is ideal for bending work, such as inside the bowl. Package Including: 1pc Chainsaw Disc The 22 teeth design provides a smooth ?finished? surface which is great for minimal sanding afterwards. Chains can be either be sharpened using a chain saw file or replaced as need be. Great for curved work, like the inside of bowls, for fast waste removal. This Grinding disc chain saw uses its speed and maneuverability to complete the cutting, engraving and removal of wood, plastic, ice and hard rubber. Chains can be sharpened with a chain saw file or replaced as needed. And it is ideal for bending work, such as inside the bowl.