5pcs Mini Cemented Carbide Tapper Drill Bit with 15mm / 20mm / 25mm / 30mm /35mm Size for Woodworking Features: - The opening is smooth, the burr is less, the sharp and durable, the work noise is small, is the carpentry worker's common tool. - Use super hard and thick alloy blade to make the blade more sharp and durable. - The body head adopts radian curve design, which is conducive to the cutting and perforation efficiency. - Can be used for wood perforation, such as installation of ball type door, drawer lock, etc.Model: Drill BitMateria: Cemented CarbideColor: See PictureQuantity: 5pcsSize: 15mm / 20mm / 25mm / 30mm /35mmBlade Diameter: 10mmLength: 71-73mmShank Diameter: 10mm Package Weight : 276 G / 9.74 Ounces Package Dimensions (L*W*H) : 50*50*50 MM / 1.97*1.97*1.97 Inches Retail Packaging: No, No Packing