General description CCYKXA Wood Twist Drill Bit Set includes 7 pieces of high-quality carbon steel spiral hole cutters designed for woodworking. This set features drill bits with diameters of 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, and 18mm, making it versatile for various drilling needs. The unique SDS handle design ensures a secure fit, preventing slippage during operation, and the self-direction thread head allows for precise positioning on wood for easy drilling. Technical specifications Material: Carbon Steel Number of pieces: 7 Drill bit diameters: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm Total length: 230mm (9.05 inches) Usage Ideal for drilling smooth, straight holes in hardwood or cork. Suitable for use with hand drills and drill presses. Designed for both professional and DIY woodworking projects.