2-flute Carbide Drill Bits (DC208) - 1/8 in. (0.125 in. shank)
Overview
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 reconstituted 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
Specifications
- 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
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 hardwoods, composites, non-ferrous metals
- Inlay pockets for mother-of-pearl dots
- Drilling printed circuit substrates
Tutorials
- Minimizing system runout with proper spindle maintenance
- Getting ready to work with microtools for the first time
