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

5/32" (0.1563", 3.970mm) fractional drill bit, 0.500 in. max DOC..

$4.52
$6.47

#22 (0.1570", 3.987mm) number drill bit, 0.500 in. max DOC..

$4.47
$6.39

#21 (0.1590", 4.038mm) number drill bit, 0.500 in. max DOC ***4.05MM METRIC EQUIVALENT..

$5.00
$7.15

#20 (0.1612", 4.094mm) number drill bit, 0.500 in. max DOC..

$5.00
$7.15

#19 (0.1660", 4.216mm) number drill bit, 0.500 in. max DOC..

$5.00
$7.15

#18 (0.1695", 4.305mm) number drill bit, 0.500 in. max DOC***SHIPS AS 4.30MM METRIC EQUIVALENT..

$5.00
$7.15

#16 (0.1770", 4.495mm) number drill bit, 0.500 in. max DOC ***4.50mm METRIC EQUIVALENT..

$5.53
$7.91

#15 (0.1800", 4.571mm) number drill bit, 0.500 in. max DOC..

$7.91

#14 (0.1820", 4.622mm) number drill bit, 0.500 in. max DOC..

$5.53
$7.91

#13 (0.1850", 4.698mm) number drill bit, 0.500 in. max DOC ***4.70mm METRIC EQUIVALENT..

$5.53
$7.91

3/16" (0.1875", 4.762mm) fractional drill bit, 0.500 in. max DOC..

$5.53
$7.91

#12 (0.1890", 4.800mm) number drill bit, 0.500 in. max DOC ***4.80mm METRIC EQUIVALENT..

$5.53
$7.91

#9 (0.1960", 4.978mm) number drill bit, 0.500 in. max DOC..

$6.46
$9.24

#8 (0.1990", 5.054mm) number drill bit, 0.500 in. max DOC..

$6.46
$9.24

#7 (0.2010", 5.105mm) number drill bit, 0.500 in. max DOC ***5.10mm METRIC EQUIVALENT..

$6.46
$9.24

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