Difference between Countersink Bit and Countersink

COUNTERSINK BIT vs COUNTERSINK: NOUN

A bit for enlarging the upper part of a hole
A hole with the top part enlarged so that the head of a screw or bolt will lie flush with or below the surface.
A tool for making such a hole.
A drill or brace-bit for countersinking, variously made, according as it is to be used on wood, iron, brass, etc.
An enlargement of a hole to receive the head of a screw or bolt.
The recess in the chamber of a gun into which the rim of the cartridge fits.
An enlargement of the upper part of a hole, forming a cavity or depression for receiving the head of a screw or bolt.
A drill or cutting tool for countersinking holes.
A conical recess, typically machined around a hole to admit a screw so that it sits flush with a surface.
A hole (usually in wood) with the top part enlarged so that a screw or bolt will fit into it and lie below the surface

To drive (a screw or bolt) into a countersink.
To make a countersink on or in.
To chamfer or form a depression around the top of (a hole in wood, metal, etc.) for the reception of the head of a screw or bolt below the surface, either wholly or in part.
To cause to sink even with or below the surface.

To form by drilling or turning, as a cavity in timber or other materials, for the reception of the head of a bolt or screw, a plate of iron, etc., in order that it may be nearly or quite flush with the surface: as, to countersink a hole for a screw.
To cause to sink in any other body so as to be nearly or quite flush with its surface: as, to countersink a screw or bolt by making a depression for its head.

Break, Braces, Brace, Better, Bead, Bars, Barred, Bar, Bag, Aside, Cupping, Ream, Set, Counterbore, Countersink

Mortise, Feeler gauge, Collet, Drum sander, Ferrule, Cotter pin, Reamer, Adjustable wrench, Allen wrench, Knurled, Chamfer, Ream, Countersink bit, Counterbore, Set

Complement, Color, Collet, Charge, Bristle, Break, Brace, Better, Bead, Barred, Bar, Aside, Set, Counterbore, Countersink

Pegboard, Torque wrench, Mortise, Feeler gauge, Collet, Drum sander, Ferrule, Cotter pin, Reamer, Adjustable wrench, Allen wrench, Knurled, Chamfer, Counterbore, Set

Chatter-free front countersinking of a big countersink range with one single tool.
Drive nails snug but do not countersink nail heads unless otherwise indicated.
Drill holes and chamfer with a countersink to prevent gelcoat cracking.
Very good countersink bit grabs on how do to the pens!
Normally the centers are produced by a combined drill and countersink.
Countersink bolt heads and provide method to prevent loosening of nuts.
The tool used for countersinking is called a countersink.
Drill pilot holes, and countersink each screw hole.
Countersink fastener heads, fill flush, and sand filler.
IN COUNTERSINK DIAMETER AND ABSOLUTE DEPTH OF THE COUNTERSINK BITS!