Features: Black hand twisted twist drill, precise drilling, wear resistance, high-speed steel material. High-quality material selection, round shank diameter, strong and wear-resistant, and smooth chip removal. Suitable for stamping of various materials, wood, soft gold, wenwan, beeswax, PVC, plastic. HSS high-speed steel material, made of high-speed steel, while taking into account durability and wear resistance. Spiral chip flute The surface of the spiral chip flute is finely polished, and the surface is smooth and flat. Quick chip removal and smoother. Specifications: Material: Metal Color : Black Size:120x20x45mm/4.72x0.79x1.77in Note: 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Black Hand Twist Drill with Twist Drill