Think & Tinker, Ltd.
CNC router bits and carbide cutting tools with tutorials and technical guides

2-flute Carbide Drill Bits (DC208) - 1/8 in. (0.125 in. shank)

  • Geometry - 2 flute, 1/8in. (3.18 mm) shank, drill point
  • Length - 1.5in. ±0.010 in.
  • Diameter - nominal +0.000 in., -0.0005 in.
  • Shank Diameter - 0.1248 in.
  • Total Included Tip Angle:
    • dia. ≤ 0.100 in. (2.54mm) - 135°
    • dia. > 0.101 in. (2.57mm) - 160°
  • Max. Runout (TIR) - ±0.0002 in.
  • Drill Depth - varies by diameter
  • Anticipated Life - anticipated life: 3,000 holes min. (FR4 epoxy glass)
  • Material - solid submicrograin carbide flutes / stainless steel shank
  • Ring Set - 0.800 in. ±0.002 in. (optional)
  • Operating RPM - CNC certified operation 20k RPM to 100k RPM
  • FEEDS & SPEEDS
Carbide 2-flute drill bits for PCB, phenolics, composites, plastic, non-ferrous metals and all woods and wood products

Drill size type

4.050mm (0.1595") metric drill bit, 0.500 in. max DOC ***#21 WIRE EQUIVALENT..

$5.43
$7.77

4.100mm (0.1614") metric drill bit, 0.500 in. max DOC..

$5.43
$7.77

4.150mm (0.1634") metric drill bit, 0.500 in. max DOC..

$5.43
$7.77

4.200mm (0.1654") metric drill bit, 0.500 in. max DOC..

$5.43
$7.77

4.250mm (0.1673") metric drill bit, 0.500 in. max DOC..

$5.43
$7.77

4.300mm (0.1693") metric drill bit, 0.500 in. max DOC*** #18 WIRE EQUIVALENT..

$5.43
$7.77

4.400mm (0.1733") metric drill bit, 0.500 in. max DOC *** #17 WIRE EQUIVALENT..

$5.43
$7.77

4.500mm (0.1772") metric drill bit, 0.500 in. max DOC *** #16 WIRE EQUIVALENT..

$7.92

4.700mm (0.1851") metric drill bit, 0.500 in. max DOC *** #13 WIRE EQUIVALENT..

$7.92

4.750mm (0.1870") metric drill bit, 0.500 in. max DOC..

$7.92

4.800mm (0.1890") metric drill bit, 0.500 in. max DOC *** #12 WIRE EQUIVALENT..

$5.54
$7.92

4.850mm (0.1910") metric drill bit, 0.500 in. max DOC *** #11 WIRE EQUIVALENT..

$5.54
$7.92

4.950mm (0.1949") metric drill bit, 0.500 in. max DOC..

$9.24

5.000mm (0.1969") metric drill bit, 0.500 in. max DOC..

$9.24

5.100mm (0.2008") metric drill bit, 0.500 in. max DOC..

$9.24

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