Specifications:Has a 5 flute rose pattern for chatter free countersinking on, brass, aluminum, plastic, wood, and other materials.Made of high speed steel, 1/4" diameter shank for easy grip.Ideal for chamfering and countersinking.Perfectly centered holes every time properly seated screw heads.Type: Countersink Drill BitMaterial: High Speed SteelQuantity: 2PcsFeatures: 5 Flute, 82 Degree, Useful, Chamfering ToolShank Diameter: 0.6cm/0.24" (Approx.)Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x 1/2 Countersink Drill Bit1 x 5/8 Countersink Drill Bit Note: 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.