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Drill Bits 2-flute 28° Standard for PCB - FrezyCNC.eu
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Drill Bits for PCB - Pro 2-flute 28° Standard

Specifications:

  • Flute geometry - 2-flute
  • Tip geometry - drill point
  • Overall Length - OAL - 38.10 mm (1.5") ±0.25 mm
  • Flute diameter - d - nominal +0.00 -0.05 mm
  • Shank diameter - D - 3.175 mm (1/8") +0.00 -0.005 mm
  • Helix angle - 28°
  • Point angle - ≤2.55mm - 135°, >2.55 - 160°
  • Runout - TIR - max. 0.005 mm
  • Depth Of Cut - DOC - nominal ±0.10 mm
  • Anticipated Life:
    • min. 3000 holes in FR4 (epoxy glass)
  • Material - solid submicrograin carbide
  • Depth Ring Set - 20.32 mm (.800") ±0.05 mm (optional)
  • Operating RPM - CNC certified operation 20k÷100k RPM

Benefits:

  • Shallow point angle minimizes backside breakout and splintering
  • Tip geometry produces shallow glue pockets for anchoring inlaid components
  • Point geometry and back tapered flutes virtually eliminate top surface splintering
  • Four facet drill point minimizes grabbing and lifting of work-piece

Applications:

  • Drilling printed circuit substrates
Drill Bits 2-flute 28° Standard for PCB
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