Feature: 1. CEMENTED CARBIDE: Made of integral heat treated carbide YG8 material, with high hardness and wear resistance. 2. DOUBLE SLOT DESIGN: The carbide burr rotary file is double slot design, which has fast chip removal and high processing efficiency. 3. FINE PROCESSING: With high processing quality and smoothness, and can be processed into various high accuracy mold cavities. 4. STRAIGHT SHANK: The grinding bit has standard straight shank, easy in installation, safe and labor saving in operation. 5. WIDE APPLICATION: Can be used for metal products, model making, wood carving, welding operations, to help grinding and deburring. Specification: Item Type: Grinding Bit Product Material: YG8 Alloy Product Model: EX1220 Slot Type: Double Slot Tool Shape: Oval Shank Diameter: Approx. 6mm / 0.24in Tool Diameter: Approx. 12mm / 0.47in Blade Length: Approx. 20mm / 0.8in Application: Widely used in metal products, tool manufacturing, engineering, model engineering, wood carving, jewelry manufacturing, welding, chamfering, casting, deburring, grinding, cylinder head transplantation and carving. Package List: 1 x Grinding Bit Note: 1. When the cemented carbide rotary file is used on pneumatic or electric tools, the speed is generally 6000‑40000rpm/min, and the tool must be clamped.2. The cutting direction should move evenly from right to left, not reciprocating cutting like using a grinding wheel; be careful not to use excessive force (the pressure generally does not exceed 4 kg).