Specifications: A lot of sizes to choose from, from 16mm to 50mm. The bits are used for drilling in woodworking in preference to drill bits and flat bits, whenever a very clean and precise hole is required. They also enable woodworkers to drill holes without passing through the material when a clean and precise bottom to a hole is required. It is far safer and more accurate to use. It is an essential tool for woodworkers. Item Name: Drill Bit Material: Carbide Alloy Quantity: 1Pcs Features: Strong, Sturdy, Woodworking Tool, Assorted Size Diameter: 16mm - 50mm/0.63" - 1.97" (Approx.) Notes: 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. Package Includes: 1 x Drill Bit