This is a very handy tool that creates a perfectly conical recess for your countersunk screws.
The 1/4" flute is particularly adapted to super scale embedding of micro countersunk screws. It can be used to hide offset hinges securing screw, recess scale panel access fasteners...
The 1/2" flute will be very handy for bigger countersunk screws like nylon screws, retract fasteners that need to be flush, or any other heavier duty job.
Both countersink are diamond point burr type and feature a 1/4" shank that is particularly suited for fitting in cordless drills.
They are 100% made in the U.S.A from the highest quality tungsten carbide. They are titanium oxyde coated and precision cut on our requirements by one of the best machining tool manufacturer.
Designed to machine kevlar fiber, carbon fiber and glass fiber laminates.
Here is a video of the countersink in action:
Cutting a countersink recess in composite laminate. from Oli Ni on Vimeo.