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)

Think & Tinker 2-flute carbide drill bits were designed and optimized for the fabrication of printed circuit boards on a wide variety of substrates. Decades of design improvements has expanded their application range to hard and soft woods, metals, glass and carbon-fiber composites and reconsititued minerals.

Every tool is:

  • 100% measured / optically inspected to insure that EVERY tool meets, or exceeds, our published specifications
  • available with depth rings precisely positioned to ±0.004 in. (0.10mm), virtually eliminating the need for resetting Z-axis zero in many applications)
  • made from premium grade submicrograin tungsten carbide (HRa: 93, TRS: 4.0GPa ) with a bonded stainless steel 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

Diameter Size Ships as LOC Flutes Shank OAL Depth Rings Reviews Part Number Price
0.0315" (0.80mm) 1/32" 0.80mm 0.400" (10.16mm) 2 1/8" 1.50" (38.1mm) Available DC208-0315-040D

$2.48

0.0625" (1.59mm) 1/16" 0.400" (10.16mm) 2 1/8" 1.50" (38.1mm) Available DC208-0625-040D

$2.73

0.0938" (2.38mm) 3/32" 0.400" (10.16mm) 2 1/8" 1.50" (38.1mm) Available DC208-0938-040D

$2.77

0.1094" (2.78mm) 7/64" 0.400" (10.16mm) 2 1/8" 1.50" (38.1mm) Available DC208-1094-040D

$2.76

0.1250" (3.18mm) 1/8" 0.400" (10.16mm) 2 1/8" 1.50" (38.1mm) Available DC208-1250-040D

$2.76

0.1563" (3.97mm) 5/32" 0.500" (12.70mm) 2 1/8" 1.50" (38.1mm) 0.800" Only DC208-1563-050D

$5.89

0.1875" (4.76mm) 3/16" 0.500" (12.70mm) 2 1/8" 1.50" (38.1mm) 0.800" Only DC208-1875-050D

$7.91$5.53

0.2031" (5.16mm) 13/64" 5.15mm 0.500" (12.70mm) 2 1/8" 1.50" (38.1mm) 0.800" Only DC208-2031-050D

$9.36

0.2188" (5.56mm) 7/32" 5.55mm 0.500" (12.70mm) 2 1/8" 1.50" (38.1mm) 0.800" Only DC208-2188-050D

$9.91

0.2500" (6.35mm) 1/4" 0.500" (12.70mm) 2 1/8" 1.50" (38.1mm) 0.800" Only DC208-2500-050D

$11.92