PreciseBits EM2E8 V-Bit Engraving/Scoring

A great choice for engraving, and PCB milling
Manufacturer: PreciseBits
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$0.00

Overview

- A great choice for engraving, and PCB milling

These PreciseBits brand 'V-tip bits feature a two flute spiral geometry for efficient debris removal while the cutting edge geometry virtually eliminates chatter at high feed rates. The 60° & 90° tips are optimized for engraving non-ferrous metals, hardwoods, phenolics, stabilized woods and composite minerals. Available with a proprietary ZrN coating extends bit life and improves cut quality.

Specifications
  • Geometry: 2 flute, "V" point
  • Tip diameter - 0.0050" ±0.0002"
  • Length - indicated ±0.010" (30° 1.50 in. ±0.010")
  • Tip angle: nominal ± 0.5°
  • Max. depth of cut - DOC (penetration) varies by tip angle
    • 30° - 0.177" (4.5mm)
    • 40° - 0.070" (1.8mm)
    • 45° - 0.075" (1.9mm)
    • 60° - 0.054" (1.4mm)
    • 90° - 0.031" (0.8mm)
  • Max runout (TIR) - < 0.0005"
  • Shank dia: 0.1250". (3.18 mm) +0.00, -0.0002"
  • Anticipated Life: 3,000 linear inches fiberglass, CNC milling)
  • Material: solid sub-micrograin carbide
  • Operating RPM: CNC certified operation 20k RPM to 100k RPM

Applications

  • Printed circuit trace isolation
  • Engraving plaques, awards, medallions, and labels
  • Custom jewelry fabrication and marking

Application Data

  • Tool Type: Engraving (or Flat-tip Engraving)
  • Diameter
    • 30V: (D) = 0.1250"
    • 45V: (D) = 0.0625"
    • 60V: (D) = 0.0625"
    • 90V: (D) = 0.0625"
  • Side Angle (A, half or draft-angle)
    • 30V: A = 15°
    • 45V: A = 22.5°
    • 60V: A = 30°
    • 9090V: A = 45°
  • Flat diameter
    • 30V: F = 0.005"
    • 45V: F = 0.005"
    • 60V: F = 0.005"
    • 90V: F = 0.005"
  • Stepdown = Depth per Pass, Pass Depth:
    • Plastic - 0.015" (0.38mm)
    • G-10 / FR-4 - 0.010" (0.25mm)
    • Aluminum - 0.005" (0.13mm)
    • Hardwood - 0.020" (0.51mm)
    • Softwood - 0.030" (0.76mm)
  • Depth of Cut (DOC):
    • 30° - 0.177" (4.48mm)
    • 45° - 0.075" (1.92mm)
    • 60° - 0.054" (1.38mm)
    • 90° - 0.031" (0.8mm)
  • Stepover (for final cleanup pass) = 0.002" (0.13mm)
  • Stepover (for roughing, clearance pass) = 0.005" (0.25mm)
  • Spindle RPM (SPEED) = 5 KRPM to 60 KRPM
  • Feedrate (IPM) = Depends on the material being cut. Do the Sweetspot Test before setting this parameter
    (go to: http://w.precisebits.com/tutorials/calibrating_feeds_n_speeds.htm).
  • PlPlunge rate = 5 IPM to 25 IPM (again depending on material being cut)

Bit sizes

Item Description Unit Price
1) PB-EM2E8-0625-40V 40°, 2-flute Scoring / Engraving bit, 0.005" tip dia.,1.42" (36mm) OAL $12.66
2) PB-EM2E8-0625-40VC 40°, ZrN coated, 2-flute Scoring / Engraving bit, 0.005" tip dia.,1.42" (36mm) OAL $15.66
3) PB-EM2E8-0625-45V 45°, 2-flute Scoring / Engraving bit, 0.005" tip dia.,1.42" (36mm) OAL $12.66
4) PB-EM2E8-0625-45VC 45°, ZrN coated, 2-flute Scoring / Engraving bit, 0.005" tip dia.,1.42" (36mm) OAL $15.96
5) PB-EM2E8-0625-60V 60°, 2-flute Scoring / Engraving bit, 0.005" tip dia.,1.42" (36mm) OAL $10.85
6) PB-EM2E8-0625-60VC 60°, ZrN coated, 2-flute Scoring / Engraving bit, 0.005" tip dia.,1.42" (36mm) OAL $14.14
7) PB-EM2E8-0625-90V 90°, 2-flute Scoring / Engraving bit, 0.005" tip dia.,1.42" (36mm) OAL $10.84
8) PB-EM2E8-0625-90VC 90°, ZrN coated, 2-flute Scoring / Engraving bit, 0.005" tip dia.,1.42" (36mm) OAL $14.14
9) PB-EM2E8-0945-30V 30°, 2-flute Scoring / Engraving bit, 0.005" tip dia.,1.50" (38.1mm) OAL $10.12
10) PB-EM2E8-0945-30VC 30°, ZrN coated, 2-flute Scoring / Engraving bit, 0.005" tip dia.,1.50" (38.1mm) OAL $13.42
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