20Pcs Twist Drill Bit Tungsten Alloy Micro PCB Rotary Tool Jewelry CNC Engraving Hardware 0.4mm

Item Type: Twist Drill Bit
Material: Alloy tungsten steel
Specification: 0.4mm(2 sets, 10pcs/set)
Processing Range: Accurate drilling of amber beeswax, circuit boards, synthetic cardboards, CNC engraved plexiglass, jewelry, hardware and plastics, etc. 

Features

1、Come with convenient opening, safe and efficient, strong abrasion resistance, durable
2、Of sharpness cutting edge and large spiral groove design prevent the generation of built-up edge
3、Adopt humanized positioning ring box design, reducing machine debugging time
4、The anti-vibration design of the cutting edge can slow down the vibration of the machining process and improve the quality of the machined surface
5、Alloy tungsten steel material, can be used for accurate drilling processing such as amber beeswax, circuit boards, synthetic cardboards, CNC engraving plexiglass, jewelry, hardware and plastics

Package List

20 x Twist Drill Bit