51670 CNC 118 Degree Point Center Drill High Performance Solid Carbide 60 Degree Countersink 3/16 Dia x 5/64 x 3/16 Shank AlTiN Coated Router Bit


Usually ships on the 2nd business day from order date.
Diameter (D) 3/16
(B) Cutting Height 5/64
Shank (d) 3/16
Overall Length (L) 2
Flutes 2
D1 5/64
Wood Screw Size #2
You will receive a courtesy discount of 5% if your cart exceeds $100 :)


Countersinks drill downwards a small amount in order to make a quality starting hole and a profile. Follow up with a secondary drill for the full depth of cut of the work-piece. They don’t route along a slot. Combination drill/countersinks provides exceptional starting positioning for secondary drills, plus provide qualified countersink dimensions for screw heads, etc. Premium Aluminum Titanium Nitride (AlTiN) coating provides quantum increases in productivity, either in terms of speed or longevity, with or without coolant.

Use on a manual or CNC driven lathes and manual or CNC driven milling machines.

Not for use in handheld drills or handheld routers.

 Excellent for cutting:
  • Stainless Steel
  • Steel
  • Titanium
  • Cast Iron
  • Soft Plastics
  • Composites
  • Cermet*
  • Corian
  • Poly (methyl methacrylate) (PMMA)
  • Acrylic Stone
  • Coroplast®**
*Cermets are composites in which ceramic materials and metals join together.

**A soft plastic cardboard made with super soft super flexible PVC.

AlTiN coating has many benefits:

  • Extra wear resistance
  • Allows for faster feed and speed rates
  • Cutting edge protected from wear
  • Better chip evacuation
  • Less heat build up
  • Superior cutting quality and extended tool life
WARNING: Inspect cut quality and adjust feed and speed accordingly. Care should be taken to observe proper feeds and speeds according to the workpiece material to avoid damage.
Note: For optimal results and extended tool life use mist lubricant system or air cooling.


Diameter (D) 3/16
(B) Cutting Height 5/64
Shank (d) 3/16
Overall Length (L) 2
Flutes 2
D1 5/64
Wood Screw Size #2