Wood Counterbore with Single Flute Tapered Drills

*Single Flute Tapered Drills made from Carbon Steel.

Inch Single Flute Tapered Drills Sized for:
#5, #6, #7, #8, #9, #10 and #12 screws

Metric Single Flute Tapered Drills Sized for:
3.2mm, 3.6mm, 4.0mm, 4.4mm, 4.8mm, 5.2mm and 5.6mm

Plus the stop collars and countersinks/counterbores to match them.