YIYATOO 20pcs 10° 15° 20° 30° 3.175mm Carbide PCB Engraving Bits CNC Router Tool 0.1mm</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>High-precision tool grinding.</li><li>Size: shank: 3.175mm， tool nose:0.1mm</li><li>A power tool for 2D sculpture， 3D sculpture.</li><li>Material: Hard alloy (tungsten steel)</li><li>These are mainly used for engraving machine.</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41cStqU7R4L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41sW4-TIHSL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41AOIbPViHL.jpg' noproxy></br>