30 Pack Mini PCB Drill Bits, Spiral Double Flute 0.1mm to 3.0mm Diameters & 1/8" Shank, Drilling for Print Circuit Board, CNC Engraving, Jewelry and Hardware

Specification: Name: Router Bit Material: Tungsten Steel Model: 0.1-3.0mm / 0.004-0.118in Shank Size: 3.175mm / 0.12in Length: 38mm / 1.50in Package Included: 30 * PCB Drill Bit Set

• 1. Made of high-hardness, wear-resistant tungsten steel, this router bit maintains sharp cutting edges even under prolonged high-intensity use. It ensures consistent performance during high-speed cutting, reducing replacement frequency and extending service life
• 2. The double-flute design minimizes vibration during operation, enhancing drilling accuracy. The large spiral groove improves chip removal, ensuring smooth and efficient processing for high-precision drilling needs
• 3. This PCB drill bit set includes 30 drill bits with diameters ranging from 0.1mm (0.004in) to 3.0mm (0.118in). Featuring a 3.175mm (0.125in) shank diameter and 38mm (1.50in) length, the variety of sizes ensures ample options for different applications and replacements
• 4. Equipped with an adjustable depth stop ring to simplify machine setup and reduce preparation time. The rings come in assorted colors for easy size identification, improving workflow efficiency
• 5. Ideal for precision drilling in materials such as amber, beeswax, PCB boards, bakelite, acrylic CNC engraving, jewelry, and hardware. Suitable for industrial manufacturing, DIY projects, and more, delivering reliable and stable drilling performance