CNC router bits and carbide cutting tools with tutorials and technical guides

Tapered-stub End-mills, PCB Traces-isolation Bits (EM2E8, EM3E8) - 1/8 in. (0.125 in. shank)

Engraving / Metal Cutting

2-flute and 3-flute tapered stub end-mills are designed around a 15° tapered core and flute profile. This geometry results in tools that are as stiff and durable as conventional V-tip cutters while offering superior copperclad substrates for printed circuit board (PCB) fabrication and engraving of both ferrous and nod-ferrous metals.

Manufactured in the USA, every tool is:

  • 100% measured / optically inspected to insure that EVERY tool meets, or exceeds, our published specifications
  • available with depth rings precisely positioned to ±0.004 in. (0.10mm), virtually eliminating the need for resetting Z-axis zero in many applications)
  • made from premium grade submicrograin tungsten carbide (HRa: 93, TRS: 4.0GPa )

This attention to detail and the use of top quality materials result in tools with dependable cutting characteristics and one of the longest tool lives in the market. Combined with comprehensive customer support, our cutters have become the tools of choice for sign makers, model makers, artists and instrument builders around the world.

  • Geometry - 2 3-flute, 15° taper, P-stub tip
  • Length - 1.42 in. (36mm) ±0.010 in
  • Tip angle - 15° +0.0°, -2.0°
  • Diameter Tolerance -± 0.0002" (0.005mm)
  • Shank dia. - 0.1250 in. (3.18 mm) +0.00, -0.0002 in.
  • Max runout (TIR) - < 0.0002 in.
  • Max. depth of cut - varies with tip diameter
  • Material - solid submicrograin carbide
  • Ring Set - 0.800 in. ± 0.004 in. (custom depth available)
  • Operating RPM - CNC certified operation 20k RPM to 100k RPM

MADE IN USA
Carbide 3-flute tapered stub end mills for engraving and PCB trace isolation and milling
LPKF and T-Tech users must specify the make and model number of their CNC routers to insure that the rings are properly positioned!

Tip Diameter MaxDiameter LOC Flutes Angle Coating Shank OAL Depth Rings Reviews Part Number Price
0.0039" (0.10mm) 0.0065" (0.17mm) 0.010" (0.25mm) 2 15° 1/8" 1.42" (36.1mm) Available EM2E8-0039-15V

$23.64

0.0051" (0.13mm) 0.0077" (0.20mm) 0.010" (0.25mm) 2 15° 1/8" 1.42" (36.1mm) Available EM2E8-0051-15V

$20.09

0.0051" (0.13mm) 0.0077" (0.20mm) 0.010" (0.25mm) 2 15° ZrN 1/8" 1.42" (36.1mm) Available EM2E8-0051-15VC

$23.59

0.0071" (0.18mm) 0.0097" (0.25mm) 0.010" (0.25mm) 3 15° 1/8" 1.42" (36.1mm) Available EM3E8-0071-15V

$19.03

0.0071" (0.18mm) 0.0097" (0.25mm) 0.010" (0.25mm) 3 15° ZrN 1/8" 1.42" (36.1mm) Available EM3E8-0071-15VC

$22.53

0.0100" (0.25mm) 0.0153" (0.39mm) 0.020" (0.51mm) 3 15° 1/8" 1.42" (36.1mm) Available EM3E8-0100-15V

$17.97

0.0100" (0.25mm) 0.0153" (0.39mm) 0.020" (0.51mm) 3 15° ZrN 1/8" 1.42" (36.1mm) Available EM3E8-0100-15VC

$21.47

0.0150" (0.38mm) 0.0229" (0.58mm) 0.030" (0.76mm) 3 15° 1/8" 1.42" (36.1mm) Available EM3E8-0150-15V

$17.12

0.0150" (0.38mm) 0.0229" (0.58mm) 0.030" (0.76mm) 3 15° ZrN 1/8" 1.42" (36.1mm) Available EM3E8-0150-15VC

$20.62

0.0200" (0.51mm) 0.0279" (0.71mm) 0.080" (2.03mm) 3 1/8" 1.50 (38.1mm) Available EM3E8-0200-05VB

$17.69

0.0200" (0.51mm) 0.0279" (0.71mm) 0.030" (0.76mm) 3 15° 1/8" 1.42" (36.1mm) Available EM3E8-0200-15V

$16.69

0.0200" (0.51mm) 0.0279" (0.71mm) 0.030" (0.76mm) 3 15° ZrN 1/8" 1.42" (36.1mm) Available EM3E8-0200-15VC

$20.18

0.0250" (0.64mm) 0.0342" (0.87mm) 0.035" (0.89mm) 3 15° 1/8" 1.42" (36.1mm) Available EM3E8-0250-15V

$16.69

0.0250" (0.64mm) 0.0342" (0.87mm) 0.035" (0.89mm) 3 15° ZrN 1/8" 1.42" (36.1mm) Available EM3E8-0250-15VC

$20.18