10 In 1 PCB Tungsten Steel Drill Bits Carving Miniature Drill Bits, Size: 1.1-2mm

10 In 1 PCB Tungsten Steel Drill Bits are designed for precision drilling and carving tasks. They are suitable for use on materials such as amber, beeswax, circuit boards, Bakelite, and plastic.

• Material: Tungsten steel
• Size: Length approximately 3.8 cm
• Shank diameter: Approximately 3.175 mm
• Weight: Approximately 40 g per set
• Application: Suitable for drilling and engraving on amber, beeswax, circuit boards, Bakelite, CNC engraving plexiglass, jewelry, hardware, and plastic
• Features: Spiral groove design to prevent chip accumulation, sharp cutting edge, anti-vibration design to improve surface quality, and positioning ring to reduce machine debugging time