10pcs set PCB Mini Drill Bits Set Tungsten Steel Carbide Spiral Flute Twist Drill Bit for Dremel Print Circuit Board Stone Jewelry CNC Engraving Machine 1.1mm-2.0mm Micro Rotary Tool Kit

Features: Carbide rods and tungsten steel rods, with high hardness, high wear resistance, high strength, resistance to bending, anti-impairment and long tool life. Use high quality materials and fine grinding process makes bit more sharp cutting edge, reduce cutting force and broken drill, improve the quality of hole wall. Drill has a large scraps discharge space, little resistance and smoothly during the scraps discharge. The cutting edges strictly avoid partial hole, ensure the quality. Specification: Product Name: PCB Drill Bit Material: Tungsten Carbide Steel Cutting Edge Diameter (CED): 1.1-2.0mm Shank Diameter: 1/8 inch (3.175mm) Size Include: 1.1mm/1.2mm/1.3mm/1.4mm/15mm/1.6mm/1.7mm/1.8mm/1.9mm/2.0mm Overall Length: 38mm / 1.5 inch Quantity: 10 Pcs / Set Package Included: 10 x Carbide PCB Drill Bits 1 x Storage Box Notes: 1. Size for manual measurement, there may be a 1 to 3 mm error, belongs to the normal phenomenon. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!