Click on the following link for product video demo presentation. https://youtu.be/MupJ_T5fEpQ

0.1mm 40 degree Black coated PCB drill bit CNC 3.175 flat bottom taper half knife tungsten steel tool


Tungsten steel as raw material provides excellent wear reasistance and longer bit life
With Titanium coated bit head comes more shaper cutting experience, and more durable
Can be also used for cutting out shapes from solid sheets and chamfering of edges of workpieces
Deburring for working, not easy to bend and break off
Sharp cutting edge produces an excellent surface finish
precision grinding 
Product Type: Flat bottom engraving bits 
Shank width: 3.175mm(0.125 inch) 
Tip diameter: 0.1mm 
Total length: 38mm(1.496 inch) 
Shape: V-shape 
Degree: 40° 
Material: solid carbide with coating 
Application: It is designed mainly for the engraving and marking of PCB, ABS, Acrylic, Wood Plank, PVC and Double Color Plate 
etc.