Order with any of our other products, enjoy FREE Add-On shipping (No extra shipping charge to be added)

For #8 screws, including:
Part #806008 Carbon Steel 3/8" Countersink 82°
Part #8071728 HSS 11/64" Taper Drill 
(Hex key NOT included)

For #10 screws, including:
Part #806010 Carbon Steel 1/2" Countersink 82°
Part #8072010 HSS 13/64" Taper Drill
(Hex key NOT included)

or #14 screws, including:
Part #806014 Carbon Steel 1/2" Countersink 82°
Part #8072514 HSS 1/4" Taper Drill
(Hex key NOT included)

Slow spiral on drill bit ejects chips quickly for less heat.
Carbon steel 4-flute countersink cuts clean smooth holes.
Adjustable countersink along taper drill for different length screws.