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

#96 (0.0063", 0.160mm) number drill bit, 0.150 in. max DOC..

$7.62

#94 (0.0071", 0.180mm) number drill bit, 0.150 in. max DOC..

$8.91

#91 (0.0083", 0.211mm) number drill bit, 0.100 in. max DOC ***SHIPS AS 0.20MM..

$8.58

#90 (0.0087", 0.221mm) number drill bit, 0.100 in. max DOC ***0.22mm METRIC EQUIVALENT..

$8.58

#88 (0.0095", 0.241mm) number drill bit, 0.150 in. max DOC..

$8.58

#87 (0.0100in, 0.254mm) number drill bit, 0.150 in. max DOC ***SHIPS AS 0.25mm..

$6.00
$8.58

#86 (0.0105in, 0.267mm) number drill bit, 0.220 in. max DOC..

$8.58

#85 (0.0110in, 0.279mm) number drill bit, 0.150 in. max DOC ***0.28mm METRIC EQUIVALENT..

$6.20

#85 (0.0110in, 0.279mm) number drill bit, 0.220 in. max DOC ***0.28mm METRIC EQUIVALENT..

$6.20

#82 (0.0125in, 0.317mm) number drill bit, 0.280 in. max DOC..

$3.66

#81(0.0130in, 0.330mm) number drill bit, 0.230 in. max DOC..

$3.66

#80 (0.0135in, 0.343mm) number drill bit, 0.220 in. max DOC ***0.35mm METRIC EQUIVALENT..

$4.07

#79 (0.0145in, 0.368mm) number drill bit, 0.220 in. max DOC..

$2.82

#78 (0.0160in, 0.406mm) number drill bit, 0.300 in. max DOC ***0.40mm METRIC EQUIVALENT..

$2.82

#77 (0.0180in, 0.457mm) number drill bit, 0.310 in. max DOC ***0.45mm METRIC EQUIVALENT..

$2.82

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