EF-C / Step Drills

On-line Stock Checker

The EF Drill - C  program is designed to provide tap drill and chamfering step drills that correspond directly to the appropriate tap drill sizes for cut & form tapping. There is no minimum purchase quantity and these step drills are available from stock or in 4 weeks or less.

  • Sub-micro grain carbide
  • Coolant fed axial design
  • TIALN-T14 coated for additional tool life
  • 140˚ point angle
  • Double margin flute design on minor step diameter
  • 90˚ included chamfer angle
  • m7 cutting diameter tolerance
  • h6 shank diameter tolerance
  • Self-centering point geometry
  • 4 week or less lead time for step lengths not currently in stock
EF-C Drills
 

Select final thread size to view available drill diameters & step lengths