Specifications: High production efficiency, good processing quality, easy to use, safe and reliable, reduce labor intensity, non-blocking. Each set includes a ball needle, a wheel needle, a peach needle, a straight tooth needle, a oblique tooth needle, and a umbrella needle. Scope of product application: for olive pits, beads, wood, precious soft metals, etc. Widely used in metal jewelry factories, wood, walnut and other carving and polishing. Type: Wood Drill Bit Quantity: 6Pcs Material: Tungsten Steel Features: Durable, Carving Tool, Woodworking Tool Shank Diameter: 2.35mm/0.09" (Approx.) Needle Head Size: Type A: 1.8mm/0.07", Type B: 2.3mm/0.09", Type C: 1.0mm/0.04", Type D: 1.4mm/0.06" (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: 6 x Wood Drill Bits