General description This Micro-Twist Drill Bit Set includes 40 pieces of high-speed steel (HSS) mini engraving drill bits with a shank diameter of 2.35mm. The set features 10 different sizes ranging from 0.6mm to 2.2mm, making it ideal for various drilling tasks. Technical specifications Shank Diameter: 2.35mm Bit Sizes: 0.6mm, 0.8mm, 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.8mm, 2.0mm, 2.2mm Material: High-speed steel (HSS) Color: Gold Usage This drill bit set is perfect for DIY carving enthusiasts, allowing you to create unique and delicate designs in wood, olives, beads, and other wooden products. Other information Package Contents: 40 x Twist Drill Bits Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product. The measurement allowed error is +/- 1-3 cm.