General description This Micro-Twist Drill Bit Set includes 30 pieces of high-speed steel (HSS) mini engraving drill bits, featuring a shank diameter of 2.35mm. The set offers a variety of sizes ranging from 0.6mm to 2.2mm, making it ideal for DIY carving enthusiasts looking to create intricate designs in wood, olives, beads, and other wooden products. 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 Other information Package Contents: 30 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.